United States v. Kent , 175 F.3d 870 ( 1999 )


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  •                              UNITED STATES of America, Plaintiff-Appellee,
    v.
    Jason Christopher KENT, Defendant-Appellant.
    No. 97-8425.
    United States Court of Appeals,
    Eleventh Circuit.
    May 4, 1999.
    Appeal from the United States District Court for the Southern District of Georgia. (No. CR496-148), B. Avant
    Edenfield, Judge.
    Before ANDERSON and HULL, Circuit Judges, and HANCOCK*, Senior District Judge.
    HULL, Circuit Judge:
    Appellant Jason Christopher Kent appeals his convictions for five separate firearms offenses and
    appeals his seventy-eight-month sentence. After review, we affirm.
    I. PROCEDURAL HISTORY
    A jury convicted Kent of five separate firearms offenses: possession of firearms, in violation of 
    18 U.S.C. § 922
    (g) (Count One); possession of a machine gun, in violation of 
    18 U.S.C. § 922
    (o) (Count Two);
    possession of a rifle with a barrel length of less than sixteen inches (a "short-barreled rifle"), not registered
    in the National Firearms Registration and Transfer Record, in violation of 
    26 U.S.C. § 5861
    (d) (Count Three);
    knowingly transporting stolen firearms in interstate commerce, in violation of 
    18 U.S.C. § 922
    (i) (Count
    Four); and bartering of stolen firearms, in violation of 
    18 U.S.C. § 922
    (j) (Count Five). At trial, the district
    court denied Kent's motions for a judgment of acquittal. After his trial, Kent filed a motion for a new trial,
    which the district court also denied.
    On appeal, Kent contends, inter alia, that the trial evidence regarding Count Three was not sufficient
    to sustain his conviction for possession of an unregistered short-barreled rifle and that the district court abused
    *
    Honorable James H. Hancock, Senior U.S. District Judge for the Northern District of Alabama, sitting
    by designation.
    its discretion in denying his motions for a judgment of acquittal and for a new trial regarding Count Three.1
    After review, we affirm Kent's conviction and sentence and the trial court's denial of his motions for a
    judgment of acquittal and for a new trial.
    II. FACTUAL BACKGROUND
    In the apartment where Kent resided, law enforcement officials found sixteen firearms. Kent's
    conviction under Count Three for possession of a short-barreled rifle was based on a Colt AR-15 found in
    Kent's apartment. The weapon charged in Count Three was discovered in two pieces in Kent's apartment:
    (1) a lower receiver unit with the stock and trigger mechanism and (2) an upper receiver unit containing a
    barrel with a length of less than sixteen inches (the "short-barreled upper receiver unit").
    The lower receiver unit was a section of a .223 caliber, Colt AR-15 rifle, with serial number
    SP166738. The short-barreled upper receiver unit was an AR-15-type unit, compatible with AR-15-type
    lower receiver units. However, the short-barreled upper receiver unit was not attached to the lower receiver
    unit of this weapon at the time it was found.2 Instead, an upper receiver unit with a barrel length in excess
    1
    Kent also challenges the sufficiency of the evidence to sustain his convictions under Counts Two,
    Four, and Five. After review, we find that Kent's insufficient-evidence claims lack merit, and we affirm
    his convictions under Counts Two, Four, and Five without further discussion. See 11th Cir. R. 36-1.
    Kent also contends that his conviction under Count One should be reversed based on
    entrapment by estoppel, but the Government correctly argues that Kent failed to present that
    claim to the district court. Kent's trial counsel did not move for a judgment of acquittal based on
    this defense, request a jury instruction on this defense, or otherwise assert this defense at trial.
    Because Kent is raising entrapment by estoppel as a defense for the first time on appeal, we
    decline to address the issue. See Waldrop v. Jones, 
    77 F.3d 1308
    , 1313 n. 3 (11th Cir.1996) ("We
    decline to address an issue not presented to the district court but raised for the first time on
    appeal."); United States v. Edmondson, 
    818 F.2d 768
    , 769 (11th Cir.1987).
    2
    The record does not establish exactly where in Kent's apartment the short-barreled upper receiver unit
    and the lower receiver unit of the Colt AR-15 rifle were found. Hence, we do not know for certain
    whether or not these two items were found in "close proximity," but know only that Kent had a small
    apartment. Cf. United States v. Carmouche, 
    138 F.3d 1014
    , 1017 (5th Cir.1998) (concluding that a
    factual stipulation that police found a shotgun "[i]n close proximity" to a shotgun barrel, which "was
    made to fit the shotgun" and was less than thirteen inches long, was sufficient to support a conviction and
    sentence for possession of a short-barreled shotgun, in violation of 
    26 U.S.C. § 5861
    (d)).
    2
    of sixteen inches ("the longer-barreled upper receiver unit") was attached to the lower receiver unit that was
    part of the weapon charged in Count Three.
    Nonetheless, the evidence at trial showed the short-barreled upper receiver unit could be fastened to
    the Colt AR-15 lower receiver unit through a two-step process. The first step—removing the upper receiver
    unit that was on the Colt AR-15 rifle—could be accomplished easily by pushing out two pins in the lower
    receiver unit and then lifting the upper receiver unit away from the lower receiver unit. The second step
    would be placing the short-barreled upper receiver unit on the lower receiver unit and pushing the two pins
    back into place to fasten the two receiver units together. This entire process could be completed in less than
    a minute.3 ATF Firearms Enforcement Officer Robert Burrows testified that fastening the short-barreled
    upper receiver unit to the Colt AR-15 lower receiver unit in this way "results in a weapon which is designed
    and intended to be fired from the shoulder, capable of discharging a shot through a rifle bore[,] and having
    a barrel length of less than sixteen inches."
    Kent admitted that he possessed the short-barreled upper receiver unit that could be combined with
    the Colt AR-15 lower receiver unit to form a short-barreled rifle. However, Kent testified that he owned the
    short-barreled upper receiver unit only for its component parts. He claimed that he intended to use the gas
    tube, the upper receiver assembly, the handguard assembly, the forward and rear sights, and "[e]verything
    but the barrel."
    Despite Kent's claim, the evidence did not suggest that he had ever removed any of the component
    parts from the short-barreled upper receiver unit. Rather, the evidence showed that the short-barreled upper
    receiver unit was found intact, as one complete unit.4 The shortbarreled upper receiver unit included an upper
    3
    In a videotaped demonstration shown to the jury, ATF Firearms Enforcement Officer Robert Burrows
    removed the upper receiver unit from an Essential Arms AR-15 rifle found in Kent's apartment and
    fastened the short-barreled upper receiver unit in its place. This entire two-step process took Officer
    Burrows approximately thirty seconds.
    4
    In the brief on appeal, Kent's attorney mentions that this upper receiver unit, which the attorney
    mistakenly refers to as a "barrel," was "found in Kent's junk parts box." From the pictures introduced, it
    is evident that the parts box was filled with springs, triggers, and other spare gun parts and did not contain
    3
    receiver assembly, a rifle barrel, a flash suppressor, forward and rear sights, a sling, a scope with batteries
    to activate the light in the scope, a gas tube, a handguard assembly, a bolt and bolt carrier—all welded or
    otherwise fastened together as a single, active upper receiver unit. The short-barreled upper receiver unit's
    flash suppressor had been welded permanently to the rifle barrel, and when law enforcement officials
    measured the rifle barrel "from the chamber end to the end of the flash suppressor," they determined the
    length to be fourteen inches. The sling on the short-barreled upper receiver unit was similar to the sling on
    the Colt AR-15 upper receiver unit which had the longer rifle barrel. The Government contended that this
    evidence of the short-barreled upper receiver unit being an intact, active unit, with a sling and with batteries
    in the scope, and the fact that the short-barreled upper receiver unit was easily interchangeable with other AR-
    15 upper receiver units including the longer-barreled unit on the Colt AR-15 when it was found in Kent's
    apartment, demonstrated that Kent's intent was to use the short-barreled upper receiver unit as an intact unit
    as opposed to using the unit for parts.
    It is undisputed that Kent had not registered in the National Firearms Registration and Transfer
    Record the weapon that could be assembled by connecting the short-barreled upper receiver unit to the Colt
    AR-15 lower receiver unit.
    III. STANDARD OF REVIEW
    The sufficiency of the evidence to support Kent's conviction is reviewed de novo, viewing the
    evidence in the light most favorable to the Government and drawing all reasonable inferences and credibility
    choices in favor of the jury's verdict. United States v. Guerra, 
    164 F.3d 1358
    , 1359 (11th Cir.1999); United
    States v. Awan, 
    966 F.2d 1415
    , 1434 (11th Cir.1992).
    the upper receiver unit. There was some kind of short barrel among the parts in the box, but this barrel
    was not the one attached to the upper receiver unit or described in the indictment and hence is not relevant
    to this appeal. Furthermore, we note that the parts box to which Kent's attorney refers is a small, clear
    plastic box, divided into twelve compartments—the kind of box often used for fishing tackle or sewing
    supplies. This parts box would be too small to hold the upper receiver unit, even if the box were not
    already filled with gun parts.
    4
    The district court's denial of the motions for a judgment of acquittal will be upheld if a reasonable
    trier of fact could conclude that the evidence establishes the defendant's guilt beyond a reasonable doubt.
    United States v. Keller, 
    916 F.2d 628
    , 632 (11th Cir.1990). The district court's denial of the motion for a new
    trial is reviewed for abuse of discretion. United States v. Michael, 
    17 F.3d 1383
    , 1384 (11th Cir.1994).
    IV. DISCUSSION
    A.        Possession of an Unregistered Firearm Under 
    26 U.S.C. § 5861
    (d)
    In Count Three, Kent was found guilty of possession of a rifle with a barrel length of less than sixteen
    inches, not registered in the National Firearms Registration and Transfer Record, in violation of 
    26 U.S.C. § 5861
    (d). Section 5861(d) of the National Firearms Act ("NFA")5 makes it unlawful for any person to
    "possess a firearm which is not registered to him in the National Firearms Registration and Transfer Record."
    
    26 U.S.C. § 5861
    (d). The term "firearm" is defined for purposes of § 5861(d) and the NFA in general as
    including, inter alia, "a rifle having a barrel or barrels of less than 16 inches in length." 
    26 U.S.C. § 5845
    (a)(3). The term "rifle," in turn, is defined as:
    a weapon designed or redesigned, made or remade, and intended to be fired from the shoulder and
    designed or redesigned and made or remade to use the energy of the explosive in a fixed cartridge
    to fire only a single projectile through a rifle bore for each single pull of the trigger, and shall include
    any such weapon which may be readily restored to fire a fixed cartridge.
    
    26 U.S.C. § 5845
    (c). This definition of a rifle does not specify that a weapon must be assembled completely
    in order to be a "rifle." Cf. United States v. Woods, 
    560 F.2d 660
    , 665 (5th Cir.1977) (interpreting 
    26 U.S.C. § 5845
    (d), the NFA definition of "shotgun"). Instead, for a weapon to be a "rifle," that weapon simply must
    be capable of being "readily restored to fire." § 5845(c).
    The parties do not dispute that the Colt AR-15, with the attached upper receiver unit with a longer
    barrel, found in Kent's apartment, constituted a "rifle." They also do not dispute that if that upper receiver
    unit was removed and the short-barreled upper receiver unit were fastened to the Colt AR-15's lower receiver
    unit, the resulting weapon would be a "rifle." Instead, the issue presented in this case is whether Kent's
    5
    
    26 U.S.C. § 5849
     provides that Chapter 53 of Title 26 may be cited as the National Firearms Act.
    5
    possession of the short-barreled upper receiver unit and the Colt AR-15 lower receiver unit, even though those
    two units were not fastened together when found in Kent's apartment, constituted possession of a "rifle having
    a barrel ... of less than 16 inches in length," a type of "firearm" required to be registered under § 5861(d).
    B.       Sufficiency of the Evidence that Kent Possessed a Short-Barreled Rifle
    After review, we find that there was sufficient evidence to sustain Kent's conviction under Count
    Three. The evidence indicates that the upper receiver unit was a complete, intact unit and that this
    short-barreled upper receiver unit was "compatible" and could be interchanged readily with the upper receiver
    unit on the Colt AR-15. Moreover, an ATF agent testified that the result of interchanging these upper receiver
    units would be "a weapon which is designed and intended to be fired from the shoulder, capable of
    discharging a shot through a rifle bore[,] and having a barrel length of less than sixteen inches." Because the
    short-barreled upper receiver unit and the Colt AR-15 lower receiver unit were located in the same, small
    apartment and could be connected so quickly and easily, creating an operable short-barreled rifle with only
    a minimum of effort, evidence that Kent possessed both of these units was sufficient to prove that Kent
    possessed a "rifle having a barrel ... of less than 16 inches in length" for purposes of § 5861(d). See United
    States v. Woods, 
    560 F.2d 660
    , 664 (5th Cir.1977); United States v. Zeidman, 
    444 F.2d 1051
     (7th Cir.1971).
    The Fifth Circuit's decision in Woods involved possession of a shotgun, rather than a rifle, but
    provides guidance because the definition of a rifle in § 5845(c) contains some of the same language as the
    definition of a shotgun in § 5845(d).6 Both definitions encompass "a weapon designed or redesigned, made
    or remade, and intended to be fired from the shoulder ... and shall include any such weapon which may be
    readily restored to fire." § 5845(c)-(d).
    The weapon possessed by the defendant in Woods was found in two parts—a fourteen and
    one-quarter inch shotgun barrel and a shotgun stock. 560 F.2d at 664. The barrel was found under a dining
    room cabinet, and the stock was found on the top shelf of the same cabinet. Id. at 662, 664. At trial, an
    6
    Decisions of the former Fifth Circuit rendered prior to October 1, 1981, are circuit precedent in the
    Eleventh Circuit. Bonner v. City of Prichard, 
    661 F.2d 1206
    , 1209 (11th Cir.1981) (en banc).
    6
    officer had demonstrated that these two parts easily could be connected to form a shotgun. 
    Id. at 664
    . The
    Fifth Circuit determined that the defendant's possession of these two parts should be considered possession
    of an unregistered short-barreled "shotgun" in violation of § 5861(d). Id. The Court reasoned that "[t]he fact
    that the weapon was in two pieces when found is immaterial considering that only a minimum of effort was
    required to make it operable." Id. The Court explained that the NFA's definition of "shotgun," in "[s]ection
    5845(d)[,] does not specify that the parts must be assembled before it applies." Id. at 665. Moreover, the
    Court emphasized that "[t]he firearm in question was capable of being 'readily restored to fire a fixed shotgun
    shell,' and to reason otherwise would be to frustrate or defeat the very purpose of the statute." Id.
    Similarly, in Zeidman, the Seventh Circuit affirmed a conviction for possession of an unregistered
    "firearm" under § 5861(d). At issue in Zeidman was whether the defendant's possession of a pistol and a
    detachable shoulder stock constituted possession of a short-barreled "rifle" for purposes of the NFA, even
    though the pistol and shoulder stock were found in "different drawers of the same dresser." 444 F.2d at 1053.
    Notwithstanding the absence of evidence that the defendant actually had attached the shoulder stock to the
    pistol, the court concluded that the defendant had possessed a short-barreled "rifle" and hence a "firearm" for
    purposes of the NFA. The court based this conclusion on the fact that the shoulder stock and pistol clearly
    could be easily attached, as follows:
    When viewed together, the interrelationship of these two items is apparent, even without
    prior knowledge of their connection. The pistol fits snugly into the butt end of the shoulder stock.
    With the end closed the stock operates both as a holster and as a means to conceal the weapon.
    Furthermore, fixtures on the tapered end of the stock allow the pistol to be securely attached
    thereto....
    Once the two parts are attached in rifle form it becomes clear that the single unit fits the
    definition of a short barreled rifle. 
    26 U.S.C. § 5845
    (c).
    
    Id.
     Thus, as in the present case, the critical factor for the courts in Zeidman and Woods was that the weapon
    could "be readily restored" to operate as a "firearm" for purposes of § 5861(d).
    C.      Thompson/Center and Owens
    7
    Kent argues that a different conclusion is required by either United States v. Thompson/Center Arms,
    
    504 U.S. 505
    , 
    112 S.Ct. 2102
    , 
    119 L.Ed.2d 308
     (1992), or United States v. Owens, 
    103 F.3d 953
     (11th Cir.),
    cert. denied, --- U.S. ----, 
    118 S.Ct. 44
    , 
    139 L.Ed.2d 11
     (1997). We disagree. We first discuss both cases in
    detail and then explain why they support the result here.
    1.       Thompson/Center
    The issue presented in Thompson/Center was whether Thompson/Center Arms, a gun manufacturing
    company, owed taxes under the NFA, 
    26 U.S.C. § 5821
    ,7 for "making" a "firearm." 
    504 U.S. at 506-07
    , 
    112 S.Ct. 2102
    . Not all pistols, rifles, or other guns are covered by the taxes due under § 5821 because "[t]he
    word 'firearm' is used as a term of art in the NFA." Id. at 507, 
    112 S.Ct. 2102
    . The term "firearm" is defined
    for purposes of § 5821, just as it is for § 5861(d) in this case, by § 5845(a), which includes inter alia, "a rifle
    having a barrel or barrels of less than 16 inches in length." 
    26 U.S.C. § 5845
    (a)(3). The question in
    Thompson/Center was whether the company had "made" a "firearm," and particularly a short-barreled rifle,
    subject to taxes under § 5821(a).
    The evidence showed that Thompson/Center Arms had produced a parts kit that could be used to
    convert a pistol it manufactured into either a short-barreled rifle or a non-"firearm" rifle. 
    504 U.S. 505
    , 507,
    
    112 S.Ct. 2102
    , 
    119 L.Ed.2d 308
     (1992). The pistol manufactured by Thompson/Center Arms was a
    single-shot pistol called the "Contender" and was designed so that its handle and barrel could be removed
    from its receiver. 
    Id. at 508
    , 
    112 S.Ct. 2102
    . The kit Thompson/Center Arms manufactured for converting
    the Contender into a rifle contained a twenty-one-inch rifle barrel, a rifle stock, and a wooden fore-end. 
    Id.
    Assembling these three parts with the Contender's receiver would result in a carbine rifle with a twenty-one
    inch rifle barrel, which, like the pistol itself, would not be a "firearm" for purposes of the NFA. 
    Id. at 507-08
    ,
    
    112 S.Ct. 2102
    .      However, by using the ten-inch pistol barrel from the Contender instead of the
    7
    Section 5821(a) provides that "[t]here shall be levied, collected, and paid upon the making of a
    firearm a tax at the rate of $200 for each firearm made." 
    26 U.S.C. § 5821
    (a).
    8
    twenty-one-inch rifle barrel from the parts kit, a short-barreled rifle—a "firearm" under 
    26 U.S.C. § 5845
    (a)(3)—could be assembled. 
    Id.
    In Thompson/Center, a plurality of three Justices ultimately concluded that it was ambiguous whether
    Thompson/Center Arms had "made" a short-barreled rifle for purposes of the NFA by packaging together the
    pistol and the parts kit. 
    Id. at 518
    , 
    112 S.Ct. 2102
    . In the course of reaching this conclusion, the plurality
    focused on the NFA's definition of "make" in 
    26 U.S.C. § 5845
    (i).8 Even though the plurality decided that
    the definition of "make" was ambiguous as applied to the specific combination of parts packaged by
    Thompson/Center Arms, the plurality recognized that the definition clearly "cover[s] more than final
    assembly" of a "firearm" and that "some disassembled aggregation of parts must be included." 
    Id. at 510
    , 
    112 S.Ct. 2102
     (emphasis supplied). Moreover, the plurality recognized two factual situations in which, under
    the NFA's definition of "make," packaging together unassembled parts would clearly constitute "making" a
    "firearm." 
    Id. at 510-12
    , 
    112 S.Ct. 2102
    .
    According to the plurality, the first of these situations—the "paradigm" situation—would be the
    aggregation of a set of parts that could only be used to assemble a "firearm" for purposes of the NFA. 
    Id. at 510-13
    , 
    112 S.Ct. 2102
    . For example, the plurality explained that aggregating disassembled parts in a
    complete short-barreled rifle kit would be "making" a short-barreled rifle. 
    Id. at 511
    , 
    112 S.Ct. 2102
    . No
    further assembly of those parts would be necessary to "make" a "firearm" for purposes of the NFA. 
    Id.
    The plurality then described the second of these situations in which making a combination of parts
    clearly would constitute "making" a "firearm" for purposes of the NFA. The plurality referred to this second
    situation as "facts one step removed from the paradigm." 
    Id. at 512
    , 
    112 S.Ct. 2102
    . According to the
    plurality, this near-paradigm situation would be packaging a complete gun other than a "firearm" together
    with "a further part or parts that would have no use in association with the gun except to convert it into a
    8
    The NFA's definition of "make" provides that "[t]he term 'make', and the various derivatives of such
    word, shall include manufacturing (other than by one qualified to engage in such business under this
    chapter), putting together, altering, any combination of these, or otherwise producing a firearm." 
    26 U.S.C. § 5845
    (i).
    9
    firearm." 
    Id. at 511-12
    , 
    112 S.Ct. 2102
    . In other words, packaging a complete, non "firearm" rifle together
    with a barrel less than sixteen-inches in length and any other parts that would have no use except to convert
    that rifle into a short-barreled rifle would suffice to "make" a short-barreled rifle for purposes of the NFA.
    The plurality, however, distinguished these two factual situations and the facts of Thompson/Center
    Arms. 
    Id. at 512-13
    , 
    112 S.Ct. 2102
    . The plurality observed that the aggregation of parts in the paradigm
    situation had "no useful purpose except the assembly of a firearm" and that the aggregation in the
    near-paradigm situation had "no ostensible utility except to convert a gun into [a firearm]." 
    Id.
     In contrast,
    the plurality reasoned that the particular pistol and conversion kit packaged by Thompson/Center Arms could
    be used to assemble either a "firearm" short-barreled rifle or a non-"firearm" rifle. 
    Id.
     Thus, because
    Thompson/Center Arm's aggregation of parts into a kit did not fit either the paradigm or the near-paradigm
    situation, the plurality concluded that it was not clear whether Thompson/Center Arms had "made" a
    "firearm" for purposes of the NFA. 
    Id. at 513-18
    , 
    112 S.Ct. 2102
    .
    The plurality's "utility" analysis was criticized by the two Justices who joined the result reached by
    the plurality but not the reasoning. 
    Id. at 519-23
    , 
    112 S.Ct. 2102
    . Also, there were four dissenting Justices
    who described the plurality's "utility" analysis as an "artificial line" and a "resort to ingenuity to create
    ambiguity." 
    Id. at 524
    , 
    112 S.Ct. 2102
    . These four Justices would have held that Thompson/Center Arms
    had "made" a "firearm" simply by producing and packaging the components necessary to assemble a
    short-barreled rifle. 
    Id. at 523-26
    , 
    112 S.Ct. 2102
    . In light of these differing opinions, any lesson to be
    learned from Thompson/Center is far from clear. In fact, to some extent, because there was no majority
    opinion with the same reasoning, it is difficult to apply Thompson/Center to any subsequent case unless it
    involves a factual situation that is the same or substantially similar to that at issue in Thompson/Center. We
    find that Thompson/Center raises more questions than it answers and thus have looked for guidance to cases
    with facts closer to those here—i.e., United States v.Woods, 
    560 F.2d 660
     (5th Cir.1977), and United States
    v. Zeidman, 
    444 F.2d 1051
     (7th Cir.1971). Nonetheless, to the limited extent Thompson/Center may provide
    10
    guidance here, the facts of this case are most analogous to the facts described in the second, or near paradigm,
    situation, and thus Thompson/Center would support sustaining Kent's conviction. The short-barreled upper
    receiver unit here clearly and easily can be used to convert the Colt AR-15 into a "firearm" and has no other
    ostensible purpose aside from making such a conversion.
    One of the specific examples the Thompson/Center plurality cited of a case involving a
    near-paradigm-type situation is the decision in Zeidman, which we discussed earlier. Thompson/Center, 
    504 U.S. at 512
    , 
    112 S.Ct. 2102
    . The defendant in Zeidman possessed a pistol and a detachable holster-shoulder
    stock that could be fastened to the pistol, thereby converting the pistol to a short-barreled rifle. 444 F.2d at
    1053. When law enforcement officials searched the defendant's home, they found the pistol and the stock
    "in different drawers of the same dresser." Id. Nonetheless, the Zeidman court upheld the defendant's
    conviction for possession of an unregistered short-barreled rifle in violation of § 5861(d) because the stock
    clearly and easily could be used to convert the pistol to a "firearm." Id. Indeed, the stock had no other
    ostensible purpose aside from converting the pistol to a "firearm." Id.
    We recognize that Kent argues he had the short-barreled upper receiver unit to use for its parts.
    However, the Government introduced sufficient evidence to raise an issue for the jury about whether Kent's
    intent was to use the short-barreled upper receiver unit only for parts or to use the short-barreled upper
    receiver unit with the lower receiver unit as an AR-15 rifle. The Government introduced a videotaped
    demonstration which showed that it took only about thirty seconds to remove an AR-15 upper receiver unit
    from a lower receiver unit and install the short-barreled upper receiver unit in its place. The Government also
    introduced evidence that the upper receiver unit was a complete, intact unit that included not just a barrel, but
    also a flash suppressor, forward and rear sights, a scope with batteries to activate the light in the scope, a gas
    tube, a handguard assembly, and a sling ready to be attached to a lower receiver unit. In addition, there was
    no other lower receiver unit found in Kent's apartment to which the short-barreled upper receiver unit could
    be attached and used to create a legal weapon for purposes of the NFA. Moreover, Kent has never contended
    11
    that there was a pistol grip or any other piece that he could use to make a legal weapon from this
    short-barreled upper receiver unit. Indeed, it would not be possible to combine the short-barreled upper
    receiver unit with any kind of lower chamber or lower receiver unit, such as a pistol grip, to create a weapon
    that would not be a "firearm" for purposes of the NFA.9
    2.       Owens
    We also find that United States v. Owens expressly reserved the issue here and does not require a
    reversal of Kent's conviction in Count Three. 
    103 F.3d 953
     (11th Cir.1997). Owens, like the present case,
    and unlike Thompson/Center, involves a challenge to a conviction for possession of an unregistered rifle in
    violation of § 5861(d). 
    103 F.3d at 954
    . In Owens, the defendant argued that his conviction should be set
    aside because it was ambiguous whether § 5861(d) required him to register his possession of a "firearm" when
    he merely possessed unassembled parts. These parts included an Uzi mini-carbine, six magazines, a
    seven-inch barrel, a nineteen and three-quarters-inch barrel, a barrel shroud, a sling, and a shoulder holster.
    Id. at 954. From these parts, it was possible to assemble either a rifle with a seven-inch barrel that would
    qualify as a "firearm" or a rifle with a nineteen-and-three-quarters-inch barrel that would not qualify as a
    "firearm." Id. at 955. Thus, the parts possessed by Owens presented a situation more analogous to the facts
    of Thompson/Center than to the rifle with interchangeable upper receiver units involved in this case.
    However, because evidence in the record indicated that Owens did more than just possess parts that
    could be assembled into a short-barreled rifle, this Court in Owens found it unnecessary to address the
    applicability of Thompson/Center to the facts of Owens or to § 5861(d) in general. An ATF agent testified
    that in the past Owens actually had assembled the rifle using the seven-inch barrel—even though the rifle was
    not so assembled at the time of Owens's arrest. Id. Owens thereby had in his possession a weapon that was
    an unregistered, short-barreled rifle-an unregistered "firearm" for purposes of § 5861(d). As a result, this
    9
    This is because, by definition, a "firearm" can be either "a rifle having a barrel or barrels of less than
    16 inches in length" or "a weapon made from a rifle if such weapon as modified has ... a barrel or barrels
    of less than 16 in inches in length." 
    26 U.S.C. § 5845
    (a)(3)-(4).
    12
    Court determined that § 5861(d), "as applied to Owens, clearly was not vague." Id. The Owens Court
    reserved for consideration "whether the effect of [§ 5861(d) ] is uncertain with respect to other litigants." Id.
    Turning to the instant case, we find that § 5861(d), as applied to Kent under the facts of this case, also
    is not vague. While there is no direct evidence that Kent had assembled the rifle using the short-barreled
    upper receiver unit before, there was sufficient evidence, as outlined above, that Kent did not have the
    short-barreled upper receiver unit for parts, but for use with the lower receiver unit, which would constitute
    possession of a "firearm" required to be registered under § 5861(d) of the NFA.
    D.      Denial of Kent's Motions for a Judgment of Acquittal and a New Trial
    Because the evidence was sufficient to support the jury's verdict, we uphold the district court's denial
    of Kent's motions for a judgment of acquittal. We also conclude that the district court's denial of the motion
    for a new trial was not an abuse of discretion.
    V. CONCLUSION
    For the foregoing reasons, we affirm Kent's convictions and sentence and affirm the district court's
    denial of Kent's motions for a judgment of acquittal and a new trial.
    AFFIRMED.
    13