Updated: 7/22/05
As defined in 18 U.S.C. § 921(a)(16) the term “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; or
(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 centerfire 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.
ATF has previously determined that certain muzzle loading models are firearms and
subject to the provisions of the Gun Control Act of 1968 (GCA). All of these guns
incorporate the frame or receiver of a firearm that is capable of accepting other barrels
designed to fire conventional rimfire or centerfire fixed ammunition. Therefore, these
muzzle loading models do not meet the definition of “antique firearm” as that term is
defined in the above-cited § 921(a)(16) and are “firearms” as defined in 18 U.S.C.
§ 921(a)(3)
Furthermore, as firearms, the models described above, as well as other similar models, regardless
of installed barrel type, are subject to all provisions of the GCA. Persons who purchase these
firearms from licensed dealers are required to fill out ATF Form 4473 and are subject to a
National Instant Background Check System (NICS) check. Convicted felons and certain other
persons are prohibited from receiving and possessing these firearms.