Definitions.
Wyo. Stat. Ann. § 6-8-403
in effect(a) As used in this act:
(i) "Ammunition" means any projectile expelled by action of an explosive from a firearm but shall not include any projectile designed to pierce armor;
(ii) "Borders of Wyoming" means the boundaries of Wyoming as described in Section 2 of the Act of Admission of the state of Wyoming, 26 United States Statutes at Large, 222, chapter 664;
(iii) "Firearm" means any weapon which will or is designed to expel a projectile by the action of an explosive. "Firearm" shall not include any fully automatic weapon or any weapon designed to fire a rocket propelled grenade or any explosive projectile;
(iv) "Firearms accessories" means items that are used in conjunction with or mounted upon a firearm but are not essential to the basic function of a firearm, including, but not limited to, telescopic or laser sights, magazines, folding or aftermarket stocks and grips, speedloaders, ammunition carriers, optics for target identification and lights for target illumination;
(v) "Generic and insignificant parts" includes, but is not limited to, springs, screws, nuts and pins;
(vi) "Manufactured" means that a firearm, a firearm accessory or ammunition has been created from basic materials for functional usefulness, including, but not limited to forging, casting, machining, molding or other processes for working materials;
(vii) "This act" means W.S. 6-8-402 through 6-8-406;
(viii) "Antique firearm" means:
(A) Any muzzleloading firearm with a matchlock, flintlock, percussion cap, or similar type of ignition system manufactured in or before 1898;
(B) Any replica of any firearm described in subparagraph (A) if such replica is not designed or redesigned for using rimfire or conventional centerfire fixed ammunition; or
(C) Any muzzleloading rifle, muzzleloading shotgun or muzzleloading pistol, which is designed to use black powder, or a black powder substitute, and which cannot use fixed ammunition. For purposes of this paragraph, the term "antique firearm" shall not include any weapon that incorporates a firearm frame or receiver, any firearm that is converted into a muzzleloading weapon or any muzzleloading weapon that can be readily converted to fire fixed ammunition by replacing the barrel, bolt, breechblock, or any combination thereof.
Source: WY Statutes (Official Site)URL: https://wyoleg.gov/statutes/compress/title06.pdfFetched: 10/4/2026