United States v. Thomas Kuzma ( 2020 )


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  •                     FOR PUBLICATION
    UNITED STATES COURT OF APPEALS
    FOR THE NINTH CIRCUIT
    UNITED STATES OF AMERICA,                       No. 18-10042
    Plaintiff-Appellee,
    D.C. No.
    v.                          4:17-cr-00855-
    RM-JR-2
    THOMAS F. KUZMA,
    Defendant-Appellant.                 OPINION
    Appeal from the United States District Court
    for the District of Arizona
    Rosemary Márquez, District Judge, Presiding
    Argued and Submitted October 4, 2019
    San Francisco, California
    Filed August 3, 2020
    Before: Richard A. Paez and Daniel P. Collins, Circuit
    Judges, and Jennifer Choe-Groves, * Judge.
    Opinion by Judge Collins
    *
    The Honorable Jennifer Choe-Groves, Judge for the United States
    Court of International Trade, sitting by designation.
    2                  UNITED STATES V. KUZMA
    SUMMARY **
    Criminal Law
    The panel affirmed in part the district court’s judgment
    in a case in which the defendant was convicted of possession
    of a machinegun (18 U.S.C. § 922(o)) and possession of an
    unregistered machinegun (26 U.S.C. § 5861(d)); and
    remanded with instructions to vacate one of the two
    convictions.
    The panel rejected the defendant’s contention that the
    statutory definition of “machinegun” underlying both counts
    is unconstitutionally vague. Considering the proper
    construction of the challenged statutory phrase, the panel
    concluded that a weapon is “designed to shoot . . .
    automatically” as required in 26 U.S.C. § 5845(b) if it has a
    specific configuration of objective structural features that, in
    the absence of any minor defect, would give the weapon the
    capacity to shoot automatically. Because the challenged
    phrase relies on the objective features of the device even
    when it is combined with the statutory phrase “framer or
    receiver,” the panel rejected the defendant’s contention that
    the phrase is unconstitutionally vague on its face.
    Finding no plain error, the panel rejected the defendant’s
    challenge to the particular definition of “machinegun” that
    was used in the jury instructions in this case, and concluded
    that the defendant had fair notice that a particular exhibit
    qualified as such a device based on its configuration of
    **
    This summary constitutes no part of the opinion of the court. It
    has been prepared by court staff for the convenience of the reader.
    UNITED STATES V. KUZMA                      3
    objective features. The panel therefore rejected the
    defendant’s as-applied vagueness challenge, as well as his
    contention that the evidence was insufficient to sustain his
    convictions.
    As to the defendant’s challenges that apply only to his
    conviction for possession of an unregistered firearm under
    § 5861(d), the panel held that any errors in declining to order
    discovery, in the introduction of a no-record certificate, and
    concerning whether the Government had to prove that the
    exhibit was registered to a particular gun-parts supplier were
    harmless.
    Because the § 922(o) charge is a lesser-included offense
    of the § 5861(d) offense, and because neither statute
    indicates that the Government authorized cumulative
    punishments to be imposed simultaneously under both
    provisions, the panel held that the two convictions are
    improperly multiplicitous and remanded for the district court
    to vacate one of the two convictions.
    COUNSEL
    Davina T. Chen (argued), Glendale, California, for
    Defendant-Appellant.
    Angela W. Woolridge (argued), Assistant United States
    Attorney; Robert L. Miskell, Appellate Chief; United States
    Attorney’s Office, Tucson, Arizona; for Plaintiff-Appellee.
    4                UNITED STATES V. KUZMA
    OPINION
    COLLINS, Circuit Judge:
    Defendant-Appellant Thomas Kuzma appeals his
    convictions for possession of a machinegun in violation of
    18 U.S.C. § 922(o) and possession of an unregistered
    machinegun in violation of 26 U.S.C. § 5861(d). He argues
    that the statutory definition of “machinegun” underlying
    both counts is unconstitutionally vague and that, to the extent
    the term does have any determinate meaning, the device he
    possessed does not qualify as a machinegun. We disagree
    with these contentions and with most of the other challenges
    that Kuzma raises to his convictions. However, because we
    agree that Kuzma’s two convictions are improperly
    multiplicitous, we remand to the district court with
    instructions to vacate one of the two convictions.
    I
    A
    Thomas Kuzma was the manager of D&D Sales and
    Manufacturing (“D&D”), a supplier of gun parts in Tucson,
    Arizona. D&D operated out of a residence owned by its co-
    founder, Donald Tatom, and at all relevant times, Kuzma
    lived alone in that residence. After an investigation
    suggested that D&D might be involved with unlawful
    machineguns, the Bureau of Alcohol, Tobacco, Firearms,
    and Explosives (“ATF”) obtained a search warrant for
    D&D’s premises in early 2017. The search warrant was
    executed on March 21, 2017, and during the search, ATF
    agents found an “Uzi-type” receiver on a shelf in the garage,
    UNITED STATES V. KUZMA                               5
    which functioned as D&D’s workshop. 1 The receiver was
    later marked as Government’s Exhibit 12 at trial, and we
    therefore will refer to it as “Exhibit 12.” As shown in a
    photograph attached to the report of the Government’s
    firearms expert (William Swift), Exhibit 12 looked like this
    at the time ATF seized it:
    1
    A “receiver” is the part of a firearm that “provides housing” for the
    hammer, bolt, and firing mechanism, and that “is usually threaded at its
    forward portion to receive the barrel.” 27 C.F.R. § 478.11. A “bolt” is
    a “sliding metal bar that positions the cartridge” at the “breech” (back)
    end of the barrel, “closes the breech, and ejects the spent cartridge” after
    each shot is fired. Bolt, AMERICAN HERITAGE DICTIONARY (5th ed.
    2018). As we explain below, the relevant statutory definition of
    “machinegun” includes, not just a fully operational machinegun, but also
    the “frame or receiver” of such a weapon. See infra at 15–16.
    6                   UNITED STATES V. KUZMA
    In the condition in which it was found, Exhibit 12 could
    not shoot at all, much less shoot automatically. 2 The device
    was missing certain components needed to make it operable,
    including the bolt, some springs, and the top cover. It did,
    however, contain a machinegun barrel at the front, as well as
    a machinegun feed ramp. Swift’s report contained the
    following photograph showing the position of the
    machinegun feed ramp:
    Exhibit 12 lacked a “blocking bar,” which is a piece of
    metal that is welded into the receiver of a semi-automatic
    firearm to prevent an unmodified machinegun bolt from
    2
    Automatic firing means that the weapon can fire “more than one
    shot, without manual reloading, by a single function of the trigger.” 26
    U.S.C. § 5845(b). By contrast, a weapon fires semi-automatically if it
    “requir[es] a squeeze of the trigger for each shot” but each such squeeze
    “[e]ject[s] a shell and load[s] the next round of ammunition
    automatically.” Semiautomatic, AMERICAN HERITAGE DICTIONARY (5th
    ed. 2018).
    UNITED STATES V. KUZMA                       7
    being used. A blocking bar, however, is not a foolproof
    method for preventing automatic operation. As Swift
    testified at trial, there are machinegun bolts that “have a slot
    machined into them,” which allows them to fit in a gun with
    a blocking bar. Nonetheless, ATF has generally taken the
    position that a receiver with a blocking bar will not be
    deemed to be a machinegun. The following photograph
    from Swift’s report shows where the holes were on Exhibit
    12 for installing a blocking bar:
    About a month after Exhibit 12 was seized, Swift tested
    it at an ATF facility. Using parts from that facility, Swift
    added the missing features needed to make Exhibit 12 an
    operable weapon. He installed an automatic bolt, as well as
    a machinegun top cover. Because the barrel that was on
    Exhibit 12 when it was seized was fitted for .45 caliber
    ammunition and Swift did not have a compatible bolt, Swift
    removed that barrel and replaced it with a 9mm barrel. He
    8                UNITED STATES V. KUZMA
    also added a compatible magazine. His report included this
    photograph of the pieces he added:
    Swift tested the fully assembled weapon, and it fired
    automatically. As shown in the photograph accompanying
    Swift’s report, Exhibit 12 looked like this when it was fully
    assembled (the arrow identifies the position of the device’s
    selector switch, which was set for automatic operation):
    UNITED STATES V. KUZMA                    9
    During and after the search, Kuzma made several
    statements to ATF investigators. To facilitate the execution
    of the search warrant at D&D, Agent Alexander Tisch used
    a ruse to get Kuzma to meet him about a quarter-mile away
    from the property. When Kuzma arrived, Tisch asked him
    to sit in Tisch’s vehicle so that he could explain what was
    going to happen. Tisch stated that the ATF agents would be
    looking for machineguns, and Kuzma replied that they
    would find one on a shelf in the garage. When Tisch asked
    whether that device would function as a machinegun, Kuzma
    responded, “Yes, it will.” Kuzma also admitted to Tisch that
    he did not have the “special” firearms license that would
    allow him to deal in machineguns. After this conversation,
    Tisch left Kuzma to participate in the search, but he
    subsequently went back to Kuzma to show him Exhibit 12
    as well as another firearm that had been found. Kuzma
    identified Exhibit 12 as the machinegun that he had referred
    to earlier, and he stated that the other firearm was only a
    semi-automatic.      In distinguishing between the two
    10               UNITED STATES V. KUZMA
    weapons, Kuzma noted that Exhibit 12’s blocking bar had
    been removed, but the other device still had one welded in.
    The next day, Tisch again spoke with Kuzma, this time
    by phone. Kuzma again stated that Exhibit 12 was a
    machinegun, and he added that it had not had a blocking bar
    for “[a]bout a month.” Tisch spoke again with Kuzma in
    person on March 29, and Kuzma admitted that, although
    Donald Tatom had asked him to get the sort of license that
    would cover certain special types of firearms (such as
    machineguns), Kuzma had “just forgot[ten]” to do that.
    B
    Kuzma was indicted on two counts based on his
    possession of Exhibit 12 at D&D. Specifically, Kuzma was
    charged with possession of a “machinegun” in violation of
    18 U.S.C. § 922(o) and with possession of an unregistered
    machinegun in violation of 26 U.S.C. § 5861(d).
    In attempting to demonstrate at trial that Exhibit 12 was
    a “machinegun” for purposes of § 922(o) and § 5861(d), the
    Government relied principally on Tisch’s testimony
    concerning Kuzma’s statements and the search, as well as on
    Swift’s examination and testing of Exhibit 12. In trying to
    show that Exhibit 12 was unregistered, the Government
    relied on Tisch to describe the National Firearms
    Registration and Transfer Record (“NFRTR”) created under
    26 U.S.C. § 5841. Tisch explained that certain types of
    firearms regulated under the National Firearms Act
    (“NFA”), such as machineguns, must be registered in the
    NFRTR. Tisch testified that he inquired as to whether
    Exhibit 12 was registered to Kuzma in the NFRTR, and in
    response he received a “Record Search Certificate” prepared
    by another ATF employee, stating that there was no record
    UNITED STATES V. KUZMA                            11
    that a device bearing Exhibit 12’s serial number was
    registered to Kuzma.
    Kuzma testified in his own defense at trial. He stated
    that he knew that ATF considered Exhibit 12 to be a
    machinegun due to the lack of a blocking bar, but he claimed
    that in the initial interview with Agent Tisch, he had said that
    Exhibit 12 was not a machinegun. On cross-examination,
    however, Kuzma acknowledged that he “[a]pparently . . .
    did” tell Tisch that Exhibit 12 was a machinegun, but he
    stated that he “didn’t recall that until [he] read the transcript”
    of that interview.
    Kuzma further claimed that a September 23, 2005 letter
    from ATF to Donald Tatom “exempt[ed] us from that”—i.e.,
    ATF’s view that Uzi-type receivers without blocking bars
    were machineguns—“until we sell these to the public.” That
    letter explained that a particular “Uzi-type receiver
    stamping” 3 submitted by D&D to ATF did not constitute a
    “machinegun,” but the letter also warned that, if the
    stamping was assembled into a “complete UZI receiver,” it
    “must have a bolt blocking bar installed.” The letter
    therefore cautioned D&D to advise its customers “that a bolt
    blocking bar must be installed to prevent the possession of
    an unregistered machinegun.” Kuzma asserted that, even
    though Exhibit 12 was a complete Uzi-style receiver, it was
    3
    As Swift explained at trial, a receiver “stamping” consists of the
    main “metal channel without the trunnion”—which he described as the
    part at the front of the receiver “that holds the barrel in place”—and
    without the “rear back plate.” It is called a “stamping,” because it
    generally consists of a stamped piece of metal that is folded into shape
    with holes cut out for other items to be added. See Stamping, WEBSTER’S
    NEW INTERNATIONAL DICTIONARY (2d ed. 1934) (“Something stamped
    out of another piece, as by machinery, or pressed or drawn into a definite
    shape from a blank.”).
    12                  UNITED STATES V. KUZMA
    equivalent to the stamping discussed in the September 2005
    letter and therefore, under his reading of that letter, such a
    device is “not a machine gun until it was sold to the public.”
    Kuzma acknowledged that D&D was never licensed to
    manufacture NFA firearms, a category that includes
    machineguns. He and other witnesses at trial referred to the
    necessary license as an “SOT,” after the Special
    Occupational Tax that accompanies such licensing. He
    claimed that he did not think that he needed such a license
    for the “testing” that he was doing, which in his view did not
    involve “manufacturing.” 4 In this regard, Kuzma insisted
    that, when he told Timothy Sink, a D&D employee, to
    remove the blocking bar from Exhibit 12, he did so only to
    enable D&D to test bolts. Kuzma insisted that Exhibit 12
    “was never intended for anything but shop testing.” Kuzma
    testified that he told Sink to put the blocking bar back into
    the receiver after the testing was completed, but Sink failed
    to do so.
    As to whether Exhibit 12 had been registered in the
    NFRTR, Kuzma testified that he “didn’t register it because
    it wasn’t a machine gun.”
    Relying on the September 2005 letter, Kuzma requested
    a jury instruction on the affirmative defense of entrapment
    by estoppel. In a written pre-trial order, however, the district
    court had concluded that there was insufficient evidence to
    permit such a defense because the device discussed in that
    4
    Tisch testified that, during one of his interviews, Kuzma stated that
    Tatom had “been telling him for two to three years to get an SOT,” but
    that he “just never got around to it.” D&D’s office manager (Tammy
    Loeffler) testified at trial that she had prepared the necessary
    applications, but they “just hadn’t been mailed yet” at the time that the
    search warrant was executed.
    UNITED STATES V. KUZMA                            13
    letter was not the same as Exhibit 12. After the close of the
    evidence at trial, the district court again reached the same
    conclusion, and the court therefore denied the requested
    instruction. 5
    After less than two hours of deliberation, the jury
    returned a verdict of guilty on both counts. Both before and
    after the verdict, Kuzma moved for a judgment of acquittal
    on the ground that, inter alia, there was insufficient evidence
    that Exhibit 12 was a machinegun, but the district court
    denied these motions.
    At sentencing, Kuzma argued that he could only be
    sentenced on one of the two counts because the § 922(o)
    count was a lesser-included offense of the § 5861(d) count.
    The district court rejected that argument and sentenced
    Kuzma to concurrent sentences of three years’ probation on
    both counts.
    Kuzma timely appealed, and we have jurisdiction under
    28 U.S.C. § 1291.
    II
    Kuzma’s primary contention on appeal is that one aspect
    of the statutory definition of “machinegun” is
    unconstitutionally vague and that, because both counts rest
    on that same definition, his convictions must be reversed. 6
    5
    Kuzma does not challenge this ruling on appeal.
    6
    In the district court, Kuzma never squarely raised the contention
    that the definition of machinegun was unconstitutionally vague, and
    arguably we could deem the issue forfeited and therefore subject only to
    plain error review. But the Government has not argued that Kuzma’s
    vagueness challenge is forfeited, thereby itself forfeiting that objection.
    14                  UNITED STATES V. KUZMA
    Alternatively, Kuzma argues that his convictions rest on an
    erroneously expansive reading of the term “machinegun”
    and that, under the correct definition, there is insufficient
    evidence to show that Exhibit 12 was a machinegun. We
    reject these contentions.
    A
    The Due Process Clause prohibits the Government from
    “taking away someone’s life, liberty, or property under a
    criminal law so vague that it fails to give ordinary people fair
    notice of the conduct it punishes, or so standardless that it
    invites arbitrary enforcement.” Johnson v. United States,
    
    576 U.S. 591
    , 
    135 S. Ct. 2551
    , 2556 (2015). In assessing
    whether a statute is impermissibly vague, “the touchstone is
    whether the statute, either standing alone or as construed,
    made it reasonably clear at the relevant time that the
    defendant’s conduct was criminal.” United States v. Lanier,
    
    520 U.S. 259
    , 267 (1997) (emphasis added). Because
    analysis of the statutory text in light of the applicable canons
    of construction may negate or eliminate the claimed
    vagueness, we begin by considering the proper construction
    of the challenged provision. See McDonnell v. United
    States, 
    136 S. Ct. 2355
    , 2375 (2016) (statutory construction
    of relevant terms may “avoid[] the vagueness concerns
    raised” by a defendant).
    See, e.g., United States v. Schlesinger, 
    49 F.3d 483
    , 485 (9th Cir. 1994)
    (“This court will not address waiver if not raised by the opposing
    party.”). Moreover, Kuzma’s arguments on this score overlap
    significantly with his contentions below that ATF’s line-drawing in this
    area was arbitrary and standardless. Accordingly, we will proceed to
    consider this issue de novo, which both sides agree is the applicable
    standard of review.
    UNITED STATES V. KUZMA                    15
    1
    For purposes of 18 U.S.C. § 922(o), which is the basis
    for Kuzma’s first count of conviction, “[t]he term
    ‘machinegun’ has the meaning given such term in section
    5845(b) of the National Firearms Act (26 U.S.C. 5845(b)).”
    See 18 U.S.C. § 921(a)(23). Kuzma’s second count of
    conviction rests on § 5861(d) of the NFA, which makes it
    unlawful for a person “to receive or possess a firearm which
    is not registered to him” in the NFRTR. See 26 U.S.C.
    § 5861(d). For purposes of the NFA, a “firearm” means only
    certain particular categories of weapons, including “a
    machinegun.”
    Id. § 5845(a)(6). The
    NFA’s definition of
    “machinegun” in § 5845(b) therefore applies to both counts.
    Section 5845(b), in turn, provides as follows:
    The term “machinegun” means any weapon
    which shoots, is designed to shoot, or can be
    readily restored to shoot, automatically more
    than one shot, without manual reloading, by
    a single function of the trigger. The term
    shall also include the frame or receiver of any
    such weapon, any part designed and intended
    solely and exclusively, or combination of
    parts designed and intended, for use in
    converting a weapon into a machinegun, and
    any combination of parts from which a
    machinegun can be assembled if such parts
    are in the possession or under the control of a
    person.
    26 U.S.C. § 5845(b). The Government does not contend that
    Exhibit 12, in the state in which it was found, is itself a
    “weapon” that “shoots, is designed to shoot, or can be readily
    restored to shoot” automatically.
    Id. Rather, both in
    the
    16                  UNITED STATES V. KUZMA
    district court and in this court, the Government has placed
    dispositive weight on the theory that Exhibit 12 is the “frame
    or receiver” of such a weapon. In providing that the “frame
    or receiver of any such weapon” is also a machinegun, the
    second sentence of § 5845(b) clearly refers back to the
    “weapon” described in the first sentence, i.e., “any weapon
    which shoots, is designed to shoot, or can be readily restored
    to shoot, automatically more than one shot, without manual
    reloading, by a single function of the trigger.”
    Id. (emphasis added); see
    also United States v. Wonschik, 
    353 F.3d 1192
    ,
    1197–98 (10th Cir. 2004).            Exhibit 12 is thus a
    “machinegun” under this definition if it is the “frame or
    receiver” of a weapon that “shoots, is designed to shoot, or
    can be readily restored to shoot” automatically. 7
    Kuzma argues only that the second category—i.e., a
    weapon that “is designed to shoot” automatically—is
    unconstitutionally vague, and so that is the key phrase whose
    meaning we must consider. Because “designed to shoot” is
    not further defined by the statute, we give that phrase its
    ordinary meaning. Johnson v. United States, 
    559 U.S. 133
    ,
    138 (2010). In addressing a vagueness challenge to a local
    7
    The remaining portions of the statutory definition are not relevant
    here. The Government has not contended that Exhibit 12 qualifies as a
    “machinegun” on the theory that it is a “part designed and intended
    solely and exclusively . . . for use in converting a weapon into a
    machinegun.” 26 U.S.C. § 5845(d) (emphasis added). At trial, the
    Government’s examination of Swift did appear to suggest that Exhibit
    12 could be deemed to be a machinegun on the theory that, together with
    other items in the garage, it constituted a “combination of parts from
    which a machinegun can be assembled,”
    id., but the Government
    has not
    pressed this theory on appeal. Moreover, Swift’s unadorned assertion
    that the D&D garage somewhere contained some unspecified parts that,
    together with Exhibit 12, could be assembled into a machinegun is too
    conclusory to provide sufficient evidence to sustain Kuzma’s conviction
    on that basis.
    UNITED STATES V. KUZMA                     17
    ordinance that regulated any item “designed . . . for use with
    illegal cannabis or drugs,” the Supreme Court noted that a
    “principal meaning of ‘design’ is ‘[t]o fashion according to
    a plan.’” Village of Hoffman Estates v. Flipside, Hoffman
    Estates, Inc., 
    455 U.S. 489
    , 491, 501 (1982) (quoting
    Webster’s New International Dictionary 707 (2d ed. 1957))
    (emphasis added).        Given that primary meaning of
    “designed,” the Court explained that “[i]t is therefore plain
    that the standard encompasses at least an item that is
    principally used with illegal drugs by virtue of its objective
    features, i.e., features designed by the manufacturer.”
    Id. at 501
    (emphasis added); see also
    id. (“the phrase refers
    to
    structural characteristics of an item”) (emphasis added). An
    item’s “design” thus focuses on its objective “pattern or
    configuration of elements.” See Design, Black’s Law
    Dictionary (11th ed. 2019).
    We therefore reject Kuzma’s contrary contention that, to
    the extent “designed to shoot” has a discernible meaning, it
    refers to the subjective “intent or purpose of the designer or
    manufacturer” and therefore does not apply to a device that
    the maker did not subjectively intend to be used to shoot.
    Indeed, a different portion of the same “machinegun”
    definition expressly covers “parts designed and intended[]
    for use in converting a weapon into a machinegun.”
    26 U.S.C. § 5845(b) (emphasis added). That the relevant
    phrase here is “designed to shoot”—and not “designed and
    intended to shoot”—supports our conclusion that this phrase
    requires a purely objective examination of the design
    features of the device and not an inquiry into the
    manufacturer’s subjective intent. See Russello v. United
    States, 
    464 U.S. 16
    , 23 (1983) (“‘[W]here Congress includes
    particular language in one section of a statute but omits it in
    another section of the same Act, it is generally presumed that
    18                  UNITED STATES V. KUZMA
    Congress acts intentionally and purposely in the disparate
    inclusion or exclusion.’”) (citation omitted).
    Although (as Kuzma notes) Hoffman Estates described
    the term “designed” as referring “to the design of the
    
    manufacturer,” 455 U.S. at 501
    (emphasis added), the Court
    made clear that the subjective intent of the manufacturer is
    relevant only insofar as it is reflected in the “objective
    features” of the product
    , id. Quoting from the
    brief of the
    ordinance’s challengers, the Court noted that they had
    essentially conceded as much: “if any intentional conduct is
    implicated by the phrase, it is the intent of the ‘designer’ (i.e.
    patent holder or manufacturer) whose intent for an item or
    ‘design’ is absorbed into the physical attributes, or
    structural ‘design’ of the finished product.”
    Id. at 501
    n.19
    (emphasis added). Likewise, in United States v. Reed,
    
    726 F.2d 570
    (9th Cir. 1984), we addressed whether a device
    was “designed . . . for use as a weapon”—and thus might
    qualify as a “destructive device” under 26 U.S.C.
    § 5845(f)—by “look[ing] to the apparent purpose for which
    the device was created” and considering whether it bore the
    “traditional indicia of a weapon.”
    Id. at 576
    (emphasis
    added). 8
    8
    Kuzma’s reliance on United States v. Fredman, 
    833 F.2d 837
    (9th
    Cir. 1987), is unavailing. There, we addressed the separate portion of
    § 5845(f) that classifies as a destructive device “any combination of parts
    either designed or intended for use in converting any device into a
    destructive device.” 26 U.S.C. § 5845(f)(3) (emphasis added). We
    concluded that, “absent proof of original design or redesign for use as a
    weapon,” subjective “[i]ntent is a necessary element” and that the
    defendant’s intent had “not been 
    established.” 833 F.2d at 839
    (emphasis
    added). Fredman’s emphasis on the user’s subjective intent thus did not
    rest on § 5845(f)(3)’s use of the word “designed” but rather on its use of
    the word “intended.” The portion of the definition of “machinegun” at
    UNITED STATES V. KUZMA                           19
    We note, however, that because the design of an item
    turns on its apparent purpose as reflected in its particular
    configuration of structural features, see 
    Reed, 726 F.2d at 576
    , a device remains “designed” for a particular use even
    though, due to a readily fixable defect, the device cannot at
    the moment be put to that use: a car with a dead battery is
    still “designed” to be driven. See United States v. McCauley,
    
    601 F.2d 336
    , 338, 341 (8th Cir. 1979) (construing
    “designed to shoot . . . automatically” as including
    defendant’s “type-96 machinegun” even though it “lacked
    the magazine necessary for automatic firing,” given that the
    trial evidence showed that such magazines could be
    obtained). This construction of the phrase “weapon which
    . . . is designed to shoot” also avoids rendering it wholly
    redundant with the phrase “weapon which shoots.” See
    Ratzlaf v. United States, 
    510 U.S. 135
    , 140–41 (1994).
    However, for such a non-operational device to be “designed
    to shoot . . . automatically,” it must be apparent from the
    device’s specific arrangement of objective design features
    that the device would ordinarily shoot automatically but for
    some minor flaw that temporarily impedes that function. By
    contrast, we agree with the Eighth Circuit in McCauley that
    if the deficiency that impedes automatic operation is
    significant and not readily repaired, then it cannot fairly be
    said that the device is one that is “designed to shoot . . .
    automatically.” 
    See 601 F.2d at 341
    (explaining that
    “designed to shoot . . . automatically” does not include
    “devices lacking ‘irreplaceable’ parts necessary to shoot
    automatically” or “a device that no reasonable effort could
    render capable of automatic fire”).
    issue here, by contrast, uses only the word “designed” and not the word
    “intended.” See supra at 17–18.
    20                 UNITED STATES V. KUZMA
    We therefore conclude that a weapon is “designed to
    shoot” automatically if it has a specific configuration of
    objective structural features that, in the absence of any minor
    defect, would give the weapon the capacity to shoot
    automatically.
    2
    Having thus considered the proper construction of the
    challenged statutory phrase, we have little difficulty
    rejecting Kuzma’s contention that the phrase is
    unconstitutionally vague on its face. 9 By focusing on
    whether a device has a specific configuration of objective
    features that, absent a minor defect, would give it the
    capacity to shoot automatically, the phrase a “weapon which
    . . . is designed to shoot . . . automatically” provides both
    sufficient notice as to what is prohibited and sufficient
    guidance to prevent against arbitrary enforcement. In
    Hoffman Estates, the Supreme Court rejected a facial
    vagueness challenge to a comparable phrase (“designed . . .
    for use”) precisely on the ground that the phrase’s focus on
    the “objective features” and “structural characteristics” of an
    item was sufficient to provide fair warning for purposes of a
    facial 
    challenge. 455 U.S. at 501
    –02. The Court concluded
    that, while that objective standard could give rise to
    “ambiguities” as applied in some specific contexts, any such
    residual issues were “of no concern in this facial challenge.”
    Id. at 502.
    Applying similar reasoning here, we conclude
    that the challenged phrase is not unconstitutionally vague on
    its face. If anything, it is Kuzma’s reading of the statute that
    9
    We likewise reject Kuzma’s contention that § 5845(b) is vague as
    applied to him. We address that issue separately below, together with
    Kuzma’s challenge to the sufficiency of the evidence. See infra at 29–
    32.
    UNITED STATES V. KUZMA                    21
    would raise serious vagueness concerns: by focusing on the
    manufacturer’s subjective intention in making a device,
    Kuzma’s construction would make it difficult, if not
    impossible, for subsequent possessors of the device to
    determine whether it had been “designed to shoot”
    automatically in that subjective sense. Cf. Flipside, Hoffman
    Estates, Inc. v. Village of Hoffman Estates, 
    639 F.2d 373
    ,
    381 & n.18 (7th Cir. 1981) (addressing the subjective
    reading of “designed . . . for use” that the Supreme Court
    later rejected and observing that, “[i]f this were a criminal
    ordinance, subjecting retailers and customers to prosecution
    based solely on the design intent of a third party, the
    manufacturer, there would be little question as to the law’s
    invalidity”).
    Kuzma relies on the Supreme Court’s recent decisions
    facially invalidating several statutory provisions that relied
    on impermissibly vague descriptions of predicate offenses,
    but none of this caselaw warrants a different conclusion from
    the one suggested by Hoffman Estates. In Johnson, for
    example, the Court addressed the so-called “residual clause”
    of the Armed Career Criminal Act, which defined as a
    “violent felony” (which warrants enhanced punishment)
    four enumerated felonies and any other felony that
    “‘otherwise involves conduct that presents a serious
    potential risk of physical injury to 
    another.’” 135 S. Ct. at 2555
    –56 (quoting 18 U.S.C. § 924(e)(2)(B)). Under the
    “categorical approach” that applied to evaluating which
    predicate offenses qualified as “violent felon[ies]” under the
    residual clause, a court was required “to picture the kind of
    conduct that the [predicate] crime involves in ‘the ordinary
    case’”—and not the conduct actually involved in the
    defendant’s case—“and to judge whether that abstraction
    presents a serious potential risk of physical injury.”
    Id. at 2557
    (emphasis added). That inquiry, the Court held, was
    22                  UNITED STATES V. KUZMA
    too “indetermina[te]” to satisfy due process standards.
    Id. In reaching that
    conclusion, the Court placed dispositive
    weight on the fact that this inquiry involved application of
    an “imprecise ‘serious potential risk’ standard” to a “judge-
    imagined abstraction”—i.e., the “judicially imagined
    ‘ordinary case’ of a crime”—rather than to “real-world
    facts.”
    Id. at 2557
    –78; see also United States v. Davis,
    
    139 S. Ct. 2319
    , 2326–27 (2019) (applying comparable
    reasoning to “residual clause” in 18 U.S.C. § 924(c)(3)(B));
    Sessions v. Dimaya, 
    138 S. Ct. 1204
    , 1214–15 (2018)
    (applying similar reasoning as to “residual clause” of
    18 U.S.C. § 16(b)). Nothing comparable is involved here, in
    which an objective standard about the actual features of a
    device is to be applied to the real-world facts of the
    defendant’s specific device. 10
    Kuzma nonetheless argues that, as illustrated in the
    testimony of the ATF expert at trial, ATF has taken a series
    of internally contradictory and arbitrary positions
    concerning which devices do and do not count as “designed
    to shoot” automatically. This contention is ultimately
    irrelevant to Kuzma’s facial challenge.             Although
    inconsistency in ATF’s position on the classification of a
    particular device could perhaps be an indicator of an as-
    applied vagueness problem, it has no bearing on the statute’s
    underlying meaning or whether that meaning is
    impermissibly vague on its face. This is not a situation in
    which an agency has been delegated authority to promulgate
    underlying regulatory prohibitions, which are then enforced
    by a criminal statute prohibiting willful violations of those
    regulations. See, e.g., 49 U.S.C. § 5124(a) (imposing
    10
    The facial invalidations in these three cases do, however, refute
    the Government’s assertion that, outside the First Amendment context,
    only as-applied vagueness challenges may be considered.
    UNITED STATES V. KUZMA                       23
    criminal penalties on any “person . . . willfully or recklessly
    violating . . . a regulation . . . issued under this chapter”). On
    the contrary, the text of the applicable prohibitions and
    definitions is set forth in statutory language. Because
    “criminal laws are for courts, not for the Government, to
    construe,” the Supreme Court has repeatedly rejected the
    view “that ‘the Government’s reading of a criminal statute is
    entitled to any deference.’” Abramski v. United States,
    
    573 U.S. 169
    , 191 (2014) (quoting United States v. Apel,
    
    571 U.S. 359
    , 369 (2014)). Thus, in Abramski, the Supreme
    Court explained that it “put aside” ATF’s about-face in how
    the agency construed the statutory provision at issue there by
    pointedly observing: “We think ATF’s old position no more
    relevant than its current one—which is to say, not relevant
    at all.”
    Id. at 191.
    Lastly, we reject Kuzma’s contention that the challenged
    phrase (“designed to shoot . . . automatically”) is
    impermissibly vague when combined with § 5845(b)’s
    inclusion of “receiver[s]” in the definition of “machinegun.”
    As explained earlier, the definition of “machinegun”
    includes, not just a “weapon which shoots, [or] is designed
    to shoot . . . automatically,” but also the “frame or receiver
    of any such weapon.” 26 U.S.C. § 5845(b). Thus, a
    defendant need not be shown to have possessed a fully
    assembled machinegun, but may be shown to have possessed
    just the frame or receiver of such a weapon. As Kuzma’s
    counsel confirmed at oral argument, Kuzma has not raised a
    vagueness challenge to the statute’s use of the term
    “receiver,” and we perceive no basis for concluding that that
    term, when combined with the phrase “designed to shoot . . .
    automatically,” renders the resulting definition vague on its
    face. Under the plain language of the statute, a device can
    only be said to be the “frame or receiver” of a “weapon
    which . . . is designed to shoot . . . automatically”—as
    24               UNITED STATES V. KUZMA
    opposed to the frame or receiver of a “weapon which . . . is
    designed to shoot” simpliciter—if the receiver itself contains
    a configuration of objective features that (when the
    remainder of the firearm is added to the receiver) would give
    the weapon the specific capacity to fire automatically. See
    26 U.S.C. § 5845(b) (emphasis added). Consequently, a
    receiver that is in all respects merely a common-denominator
    subcomponent of either a semiautomatic weapon or an
    automatic weapon cannot be said to be a receiver of a
    “weapon which . . . is designed to shoot . . . automatically.”
    Because the challenged phrase continues to rely on the
    objective features of the device even when it is combined
    with the phrase “frame or receiver,” it is not void for
    vagueness in that context either.
    *         *     *
    We therefore reject Kuzma’s argument that the phrase
    “weapon which . . . is designed to shoot . . . automatically”
    in § 5845(b) is unconstitutionally vague on its face.
    B
    Kuzma also raises a variety of challenges concerning the
    application of § 5845(b) in his particular case, but we
    conclude that all of them are meritless.
    1
    As an initial matter, Kuzma challenges the particular
    definition of “machinegun” that was used in the jury
    instructions in this case—even though his own counsel was
    the one who suggested adding the very language that Kuzma
    now attacks as legally erroneous. Citing United States v.
    Guthrie, 
    931 F.2d 564
    , 567 (9th Cir. 1991), the Government
    argues that, as a result, review of this issue is barred by the
    UNITED STATES V. KUZMA                     25
    invited-error doctrine. But in United States v. Perez,
    
    116 F.3d 840
    (9th Cir. 1997) (en banc), this court
    distinguished Guthrie and held that an error “induced or
    caused” by the defendant remains subject to plain error
    review unless, in inviting the error, “the defendant
    intentionally relinquished or abandoned a known right.”
    Id. at 845.
    The parties dispute whether the record reflects such
    a relinquishment here, but we need not resolve this issue.
    Even applying plain error review, we find no basis for
    reversal on account of this instruction.
    The jury instructions in this case defined “machinegun”
    by repeating verbatim the entire text of the definition
    contained in § 5845(b). The instructions, however, also
    contained some additional language, including the following
    portion that Kuzma belatedly challenges on appeal:
    The “designed” definition includes weapons
    which have not previously functioned as
    machineguns       but     possess   specific
    machinegun design features which facilitate
    automatic fire by simple alteration or
    elimination of existing component parts.
    Kuzma contends that this definition was erroneous because,
    in his view, the statute requires a focus on the manufacturer’s
    subjective intention in creating the device. We have already
    rejected that contention, and so there was no plain error in
    the instruction’s objective focus on “specific machinegun
    design features which facilitate automatic fire.”
    26               UNITED STATES V. KUZMA
    We likewise find no plain error here in the instruction’s
    reference to features that facilitate automatic fire “by simple
    alteration or elimination of existing component parts.” On
    the one hand, this phrase arguably could be read to go
    beyond the statute’s reach by literally including devices that
    can acquire an automatic capacity, not already reflected in
    their existing design, “by simple alteration or elimination of
    existing component parts.” On the other hand, the latter
    phrase could perhaps be narrowly construed as referring
    merely to the correction of minor flaws or defects that may
    prevent a particular device from functioning in accord with
    its existing objectively apparent design, which would be
    consistent with the statute. We need not resolve this issue
    because, even assuming that this aspect of the instruction
    was erroneous, it did not affect Kuzma’s substantial rights.
    See United States v. Olano, 
    507 U.S. 725
    , 734–35 (1993).
    As we explain below, on the facts of this case, any automatic
    capacity that inhered in the objective design of Exhibit 12
    already existed at the time Kuzma possessed it. See infra
    at 27–29. There is thus no reasonable possibility that the
    jury here relied on an impermissibly expansive reading of
    this instruction in convicting Kuzma.
    2
    Applying the correct definition of “machinegun,” we
    conclude that Kuzma had fair notice that Exhibit 12 qualified
    as such a device based on its configuration of objective
    features. We therefore reject his as-applied vagueness
    challenge, as well as his contention that the evidence was
    insufficient to sustain his convictions.
    UNITED STATES V. KUZMA                            27
    a
    Because it is not a complete weapon that, by itself, was
    designed to shoot, Exhibit 12 qualifies as a “machinegun”
    only if it is the “frame or receiver” of a weapon that “shoots,
    [or] is designed to shoot . . . automatically.” 11 26 U.S.C.
    § 5845(b). As we have explained, Congress’s directive that
    the “frame or receiver” of a “machinegun” also qualifies as
    a “machinegun” unmistakably confirms that the statute
    reaches the core subcomponent of an automatic weapon,
    even if that device by itself cannot shoot at all. But to count
    as the relevant core of a machinegun (as opposed to some
    other firearm), a frame or receiver must itself contain a
    configuration of objective design features that facilitate
    automatic fire, as demonstrated by the fact that, when the
    remaining missing features of a complete firearm are added
    to the receiver, the resulting weapon shoots, or is designed
    to shoot, automatically. See supra at 16–20. Under this
    standard, Exhibit 12 was plainly a machinegun.
    Kuzma does not contest that Exhibit 12 had enough of
    the core features of a firearm to qualify as a “frame or
    receiver.” And because Exhibit 12 had its blocking bar
    removed, its objective design features facilitated automatic
    firing, as shown by the fact that, when Swift added the few
    remaining features needed to complete an operational
    firearm (namely, a bolt and top cover), Exhibit 12 fired
    automatically. See supra at 6–8. This conclusion is not
    altered by the fact that, in adding the remaining features,
    11
    Because Exhibit 12 had not previously been part of a complete
    automatic weapon, it was concededly not the “frame or receiver” of a
    “weapon which . . . [could] be readily restored to shoot[] automatically.”
    26 U.S.C. § 5845(b) (emphasis added). And as explained earlier, none
    of the other clauses of § 5845(b)’s definition applied to Exhibit 12. See
    supra note 7.
    28               UNITED STATES V. KUZMA
    Swift swapped out the existing barrel for a different one that
    matched one of the bolts he had available. A barrel is not
    itself part of a receiver, and so the swap cannot have altered
    the design of the receiver. In any event, such an even swap
    of features does not materially alter the functionality of the
    resulting operable firearm and has no bearing on whether it
    does or does not qualify as a machinegun. Moreover, Kuzma
    himself admitted in his statements to Tisch that he knew that
    the features of Exhibit 12 were such that, when the
    remaining missing pieces to create an operable firearm were
    installed on Exhibit 12, the device would shoot
    automatically. Cf. Staples v. United States, 
    511 U.S. 600
    ,
    619 (1994) (holding that the Government must show that the
    defendant knew the device had the characteristics that
    brought it within the scope of the NFA); United States v.
    Rogers, 
    94 F.3d 1519
    , 1523 (11th Cir. 1996) (same as to
    § 922(o)), cert. dismissed, 
    522 U.S. 252
    (1998). The trial
    evidence was thus sufficient to show that, at the time Kuzma
    possessed it, Exhibit 12 had the objective features necessary
    to establish that it was the “frame or receiver” of a “weapon
    which shoots, [or] is designed to shoot . . . automatically.”
    UNITED STATES V. KUZMA                             29
    26 U.S.C. § 5845(b). 12 It therefore was a “machinegun”
    within the plain language of § 5845(b). 13
    b
    Kuzma nonetheless contends that the statute is vague as
    applied to him, because ATF issued contradictory guidance
    concerning receivers just like Exhibit 12, thereby confirming
    that the statute’s coverage of such devices was fatally
    unclear even to ATF. The trial evidence showed that ATF
    had indeed sent two inconsistent letters to D&D concerning
    whether a certain receiver stamping qualified as a
    12
    At oral argument, Kuzma suggested that, in the context of an
    operational firearm that is assembled from a receiver, the receiver alone,
    in its earlier state, can be said to have been the receiver of a weapon
    which will shoot automatically, but not of one which “shoots . . .
    automatically.” 26 U.S.C. § 5845(b) (emphasis added); cf. 18 U.S.C.
    § 921(a)(3) (defining “firearm” as, inter alia, “any weapon . . . which
    will or is designed to or may readily be converted to expel a projectile”)
    (emphasis added). We doubt that the use of the present tense rather than
    the future tense in § 5845(b) makes any difference, see, e.g., 1 U.S.C. § 1
    (“unless the context indicates otherwise[,] . . . words used in the present
    tense include the future as well as the present”) (emphasis added), but
    the point is ultimately irrelevant. Exhibit 12 would clearly remain
    covered under § 5845(b) as the “frame or receiver” of a “weapon which
    . . . is designed to shoot . . . automatically.”
    13
    We reject Kuzma’s contention that the district court erred in
    permitting Swift to offer his opinion that Exhibit 12 was a machinegun
    as defined by § 5845(b). Because Kuzma failed to raise this objection in
    the district court, we review only for plain error, see 
    Olano, 507 U.S. at 730
    (citing FED. R. CRIM. P. 52(b)), and we find none. See United
    States v. Bishop, 
    926 F.3d 621
    , 632–33 (10th Cir. 2019) (finding no plain
    error in allowing expert to testify that device was a machinegun when
    expert “adequately explained the basis for his opinion”); see generally
    United States v. Diaz, 
    876 F.3d 1194
    , 1197–99 (9th Cir. 2017) (finding
    no error when expert was asked questions “adopt[ing] the language of
    the elements”).
    30                  UNITED STATES V. KUZMA
    “machinegun,” but nothing in this evidence concerning the
    classification of that qualitatively different device bespeaks
    ambiguity as to the statute’s coverage of Exhibit 12.
    Only the second letter was received into evidence at trial,
    and it stated that ATF’s prior letter to D&D had contained
    “an erroneous determination regarding the classification of
    your previously submitted UZI-type receiver stamping.”
    Specifically, the letter stated that “[o]ur original
    classification of this item as a machinegun was not
    accurate.” As the letter explained, the item ATF examined
    consisted of the folded metal receiver stamping, which had
    “various holes and slots, but no additional parts installed.”
    The letter concluded that this receiver stamping, “as
    examined, does not possess the design features of an UZI-
    type machinegun receiver that facilitate automatic fire by
    simple modification of existing parts.” However, the letter
    warned that, if this receiver stamping is “assembled into a
    complete UZI receiver by the installation of a back plate,
    barrel trunnion, and other receiver components, [it] must
    have a bolt blocking bar installed” and, “[i]f not, it will be
    considered a machinegun receiver.” While the letter might
    suggest some subjective confusion on ATF’s part as to
    exactly how to classify stampings that lack almost any other
    parts, 14 that does not somehow create uncertainty as to how
    14
    For example, the letter could be read as taking the view that the
    folded stamping was too barebones to count as a “receiver,” although
    that reading is hard to square with the letter’s simultaneous insistence
    that the stamping was a “firearm.” (The stamping could not possibly fit
    the definition of a “firearm” in 18 U.S.C. § 921(a)(3) unless it was a
    “receiver.”) Alternatively, the letter could perhaps be read to suggest
    that, by itself, the stamping was too much of a least-common-
    denominator device to count as a machinegun receiver. Cf. supra at 23–
    24. But as Kuzma notes, at trial Swift appeared at one point to suggest
    that a folded receiver stamping with no additional parts was a
    UNITED STATES V. KUZMA                          31
    the statutory language objectively applies to Exhibit 12,
    which was not a mere stamping. On the contrary, because
    Exhibit 12 was a “complete UZI receiver” with “a back
    plate, barrel trunnion, and other receiver components,” the
    letter’s reasoning would likewise classify Exhibit 12 as “a
    machinegun receiver.” The letter thus does nothing to
    suggest that the statute’s application to Exhibit 12 creates an
    as-applied vagueness issue.
    Kuzma argues that the statute is still vague as applied
    here because in his view ATF improperly attaches talismanic
    significance to the presence or absence of a blocking bar.
    But in assessing Kuzma’s as-applied vagueness challenge,
    we need not address whether Swift correctly answered all of
    Kuzma’s counsel’s various hypotheticals as to which other
    devices with which other components would or would not
    count as machinegun receivers. In an as-applied challenge,
    the only question is whether the statute “‘is impermissibly
    vague in the circumstances of this case.’” United States v.
    Purdy, 
    264 F.3d 809
    , 811 (9th Cir. 2001) (citation omitted).
    Even if Kuzma is correct in contending that design features
    other than blocking bars may sufficiently impede automatic
    operation so as to prevent a receiver from being classified as
    a machinegun receiver, that would not create any basis for
    finding § 5845(b) vague as applied here. As Swift
    explained, Exhibit 12 did not have any such alternative
    design features “that could have prevented it from
    functioning as a machine gun.” Indeed, had Exhibit 12
    possessed such features, it would not have fired
    machinegun receiver, thus seemingly contradicting ATF’s own about-
    face on that issue. Because it ultimately has no impact on the result in
    this case, we express no view as to which (if any) of these conflicting
    views about receiver stampings is correct.
    32               UNITED STATES V. KUZMA
    automatically when Swift tested the fully assembled
    weapon.
    “Because the controlling standard of conduct is
    reasonably clear and [Kuzma] clearly violated that standard,
    we hold that [§ 5845(b)] is not unconstitutionally vague as
    applied to [Kuzma].” United States v. Agront, 
    773 F.3d 192
    ,
    199 (9th Cir. 2014).
    III
    Kuzma also raises several challenges that apply only to
    his conviction for possession of an unregistered firearm
    under 26 U.S.C. § 5861(d), but none of these points warrants
    reversal.
    Prior to trial, Kuzma repeatedly sought to obtain
    information from the Government concerning the reliability
    of the recordkeeping in the NFRTR, but the district court
    declined to order such discovery. Kuzma renewed his
    objection to those prior rulings at trial when the Government
    sought to introduce a “Record Search Certificate” from ATF
    employee Jon Coleman stating that, “after [a] diligent
    search” of the NFRTR, Coleman “found no evidence” that a
    firearm bearing Exhibit 12’s serial number was registered to
    Kuzma. Moreover, in doing so, Kuzma’s counsel also
    specifically objected to the admission of that certificate,
    explaining that “it’s not an accurate regist[er], the federal
    regist[er], and I don’t have an opportunity to cross examine
    the person that’s introducing it as to the accuracy of the
    federal regist[er].” Kuzma renews these points on appeal,
    arguing that discovery should have been ordered and that the
    introduction of the no-record certificate over his objection
    violated his rights under the Confrontation Clause.
    UNITED STATES V. KUZMA                             33
    Even if the district court erred in either or both of these
    respects, any error would be harmless. Kuzma expressly
    admitted at trial that he had not registered Exhibit 12, and he
    made the same admission in his earlier statements to Tisch.
    Whether the Government’s registration records were
    adequate to show the absence of this concededly non-
    existent registration would thus not have altered the
    outcome. United States v. Larson, 
    495 F.3d 1094
    , 1107–08
    (9th Cir. 2007) (en banc) (holding that Confrontation Clause
    error was harmless beyond a reasonable doubt in light of
    other testimony in the record).
    Kuzma further argues, however, that § 5861(d) required
    the Government to prove that both Kuzma and D&D failed
    to register Exhibit 12. This contention appears doubtful,
    given that the plain text of the statute requires a registration
    that extends to each person who receives or possesses such
    a firearm: “It shall be unlawful for any person . . . to receive
    or possess a firearm which is not registered to him in the
    [NFRTR].” 26 U.S.C. § 5861(d) (emphasis added). But we
    need not resolve this issue, because the undisputed testimony
    at trial confirmed that Exhibit 12 was not registered to D&D
    either. As Tisch explained, Kuzma admitted that D&D did
    not have the requisite license for a machinegun, which (as
    noted earlier) the witnesses referred to at trial as an “SOT.”
    See supra at 12. 15 Tisch further stated that Kuzma had told
    15
    There are very limited circumstances in which a manufacturer can
    lawfully produce machineguns and register them. See 18 U.S.C.
    § 922(o)(2) (exempting, inter alia, possession “under the authority of[]
    the United States” or a state or local government); 27 C.F.R.
    § 479.105(c) (“The registration of such machine guns under this part and
    their subsequent transfer shall be conditioned upon and restricted to the
    sale or distribution of such weapons for the official use of Federal, State
    or local government entities.”). Any such manufacturer (among others)
    is subject to the “special (occupational) tax.” 26 U.S.C. § 5801(a).
    34                  UNITED STATES V. KUZMA
    him D&D’s owner had been urging Kuzma “for two to three
    years to get an SOT,” but to no avail. In his trial testimony,
    Kuzma confirmed that he had asked Tammy Loeffler to
    prepare the authorization paperwork “about a week before”
    the search. In turn, Loeffler admitted on cross-examination
    that she had never “obtained an SOT” on D&D’s behalf, and
    she claimed that she had prepared the paperwork but failed
    to mail it out. Accordingly, any error concerning whether
    the Government had to prove that Exhibit 12 was registered
    to D&D was harmless. See Neder v. United States, 
    527 U.S. 1
    , 17–20 (1999). 16
    IV
    Finally, Kuzma contends that, even if his § 922(o) and
    § 5861(d) convictions are free from reversible error when
    considered separately, the two convictions are multiplicitous
    and cannot coexist simultaneously. We agree.
    Under the aspect of the Double Jeopardy Clause that
    protects against multiple punishments, “‘cumulative
    sentences are not permitted’” for two statutes that proscribe
    the same offense, “‘unless elsewhere specially authorized by
    Congress.’” Missouri v. Hunter, 
    459 U.S. 359
    , 367 (1983)
    (quoting Whalen v. United States, 
    445 U.S. 684
    , 693 (1980))
    (emphasis omitted); see also United States v. Schales,
    
    546 F.3d 965
    , 977 (9th Cir. 2008). The test for determining
    whether two statutes define the same offense is the familiar
    “Blockburger test,” which asks “‘whether each provision
    requires proof of a fact which the other does not.’”
    Id. 16
           To the extent that we have concluded that certain potential errors
    were either harmless or not plain error, see supra at 32–34, we further
    conclude that the cumulative effect of any such potential errors is also
    harmless. United States v. Fernandez, 
    388 F.3d 1199
    , 1256–57 (9th Cir.
    2004).
    UNITED STATES V. KUZMA                     35
    (quoting Blockburger v. United States, 
    284 U.S. 299
    , 304
    (1932)). Here, the Government concedes that § 922(o) does
    not require proof of any element that is not also required
    under § 5861(d). The former statute requires possession of
    an item that qualifies as a machinegun with knowledge of
    the essential characteristics that make that item a
    machinegun, see 18 U.S.C. §§ 922(o), 924(a)(2), and the
    latter statute requires all of those same elements (plus an
    additional element concerning the lack of registration), see
    26 U.S.C. §§ 5845(a)(6), 5845(b), 5861(d), 5871. The
    § 922(o) charge is therefore a lesser-included offense of the
    § 5861(d) charge. The Government further concedes that
    neither statute (nor any other provision of law) indicates that
    Congress authorized cumulative punishments to be imposed
    simultaneously under both provisions. Because “[o]ne of the
    convictions, as well as its concurrent sentence, is
    unauthorized punishment,” one of them must be vacated.
    Ball v. United States, 
    470 U.S. 856
    , 864 (1985). Given that
    the ultimate “sentencing responsibility resides” with the
    district court, the “only remedy consistent with
    congressional intent” is for that court “to exercise its
    discretion to vacate one of the underlying convictions.” Id.;
    see also 
    Schales, 546 F.3d at 980
    .
    Accordingly, we remand the case to the district court
    with instructions to vacate one, and only one, of Kuzma’s
    two convictions. We otherwise affirm the convictions and
    judgment in all other respects.
    AFFIRMED IN PART AND REMANDED.