Caliber convertible AR-15 upper receiver system

Cartridge ejection mechanism for converted automatic pistol

Chamber for a firearm

Choke assemblies for shotguns

Choke assembly for a shotgun

Choke tube

Choke tube assembly

Combination breech-loading to muzzle-loading firearm converting

Composite barrel construction made using injection molding

Composite firearm barrel

Composite firearm barrel assemblies

Composite firearm barrel reinforcement

Composite gun barrels

Composite structural member

Composite tube for a gun barrel

Composite tube for gun barrel

Composite tube for gun barrel

Composite/metallic gun barrel having a differing, restrictive co

Compressed elastomer process for autofrettage and lining tubes

Concepts of remington super trap choke