- (A) Any weapon (including a starter gun) which will, or is designed to, or may readily be converted to, expel a projectile by the action of an explosive;
- (B) The frame or receiver of any such weapon;
- (C) Any firearm muffler or firearm silencer; or
- (D) Any destructive device.
The term, "Firearm," does not include an antique firearm.
"Antique firearm" means:
- (A) Any firearm (including any firearm with a matchlock, flintlock, percussion cap, or similar type of ignition system) manufactured in or before 1898; and
- (B) Any replica of any firearm described in subparagraph (A) if such replica
- (i) Is not designed or redesigned for using rimfire or conventional centerfire fixed ammunition; or
- (ii) Uses rimfire or conventional fixed ammunition which is no longer manufactured in the United States, and which is not readily available in the ordinary channels of commercial trade; or
- (C) Any muzzle loading rifle, muzzle loading shotgun, or muzzle loading pistol, which is designed to use black powder, or a black powder substitute, and which cannot use fixed ammunition. For purposes of this subparagraph, the term "antique firearm" shall not include any weapon which incorporates a firearm frame or receiver, any firearm which is converted into a muzzle loading weapon, or any muzzle loading weapon which can be readily converted to fire fixed ammunition by replacing the barrel, bolt, breechblock, or any combination thereof.
Any ammunition or cartridge cases, primers, bullets, or propellent powder designed for use in any firearm.