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.
(c) Rifle. The term 'rifle' means 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 rifled bore for each single pull of
the trigger, and shall include any such weapon which may be readily restored to fire a fixed cartridge.
(d) Shotgun. The term 'shotgun' means 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 shotgun shell to fire through a smooth bore either a number of projectiles
(ball shot) or a single projectile for each pull of the trigger, and shall include any such weapon which
may be readily restored to fire a fixed shotgun shell.
(e) Any other weapon. The term 'any other weapon' means any weapon or device capable of being
concealed on the person from which a shot can be discharged through the energy of an explosive, a
pistol or revolver having a barrel with a smooth bore designed or redesigned to fire a fixed shotgun
shell, weapons with combination shotgun and rifle barrels 12 inches or more, less than 18 inches in
length, from which only a single discharge can be made from either barrel without manual reloading,
and shall include any such weapon which may be readily restored to fire. Such term shall not include a
pistol or a revolver having a rifled bore, or rifled bores, or weapons designed, made, or intended to be
fired from the shoulder and not capable of firing fixed ammunition.
(f) Destructive device. The term 'destructive device' means (1) any explosive, incendiary, or poison
gas (A) bomb, (8) grenade, (C) rocket having a propellant charge of more than four ounces, (0) missile
having an explosive or incendiary charge of more than one-quarter ounce, (E) mine, or (F) similar
device; (2) any type of weapon by whatever name known which will, or which may be readily converted
to, expel a projectile by the action of an explosive or other propellant, the barrel or barrels of which have
a bore of more than one-half inch in diameter, except a shotgun or shotgun shell which the Secretary
finds is generally recognized as particularly suitable for sporting purposes; and (3) any combination of
parts either designed or intended for use in converting any device into a destructive device as defined in
subparagraphs (1) and (2) and from which a destructive device may be readily assembled. The term
'destructive device' shall not include any device which is neither designed nor redesigned for use as a
weapon; any device, although originally designed for use as a weapon, which is redesigned for use as a
signaling, pyrotechnic, line throwing, safety, or similar device; surplus ordnance sold, loaned, or given
by the Secretary of the Army pursuant to the provisions of section 4684(2), 4685, or 4686 of title 10 of
the United States Code; or any other device which the Secretary finds is not likely to be used as a
weapon, or is an antique or is a rifle which the owner intends to use solely for sporting purposes.
(g) Antique firearm. The term 'antique firearm' means any firearm not designed or redesigned for
using rim fire or conventional center fire ignition with fixed ammunition and manufactured in or before
1898 (including any matchlock, flintlock, percussion cap, or similar type of ignition system or replica
thereof, whether actually manufactured before or after the year 1898) and also any firearm using fixed
ammunition manufactured in or before 1898, for which ammunition is no longer manufactured in the
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