Firearms including rifles, pistols; ammunition and projectiles; magazines including magazines for firearms; cartridges including cartridges for firearms, cartridge magazines for firearms; cartridge cases, cartridge holders, cartridge belts, cartridge case receivers for firearms, cartridge loading apparatus, cartridge pouches; apparatus for filling cartridge belts, belts for carrying ammunition; bullets for firearms, shot for firearms; weapons and weapon systems; cleaning brushes for firearms; parts and accessories for all of the foregoing