Firearm

Firearm adapter device and cartridge carrier for use therein

Firearm and bullet identification

Firearm and munitions kit

Firearm and munitions kit

Firearm barrel assembly

Firearm barrel having protective sleeve

Firearm barrel manufacturing methods and barrel assemblies

Firearm barrels and projectiles

Firearm capable of firing different-sized cartridges

Firearm cartridge and case-less chamber

Firearm for firing ammunition of different caliber

Firearm with interchangeable barrels

Firearm with reversible barrel

Firearms intended to fire a caseless projectile, and ammunition

Fired bullet identification system

Flash suppressor apparatus and methods

Flashless electric firearm and ammunition therefor

Fluted gun barrel

Full gain twist ratchet rifling