§5–202.

This subtitle does not apply to a short-barreled rifle or short-barreled shotgun that is: (1) an antique firearm as defined in § 4-201 of the Criminal Law Article; (2) a device designed or redesigned for use other than as a weapon; (3) a device designed or redesigned for use as a signaling, pyrotechnic, line throwing, safety, or similar device; or (4) a firearm that cannot: (i) discharge a projectile by an explosive; and (ii) be readily restored to a firing condition.