Barrels Gun tubes Muzzle attachments Barrel mounting means

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F41Weapons F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE

F41A21/00Barrels Gun tubes Muzzle attachments Barrel mounting means

F41A21/02Composite barrels, i.e. barrels having multiple layers F41A21/04Barrel liners F41A21/06Plural barrels F41A21/08Barrel junctions F41A21/10Insert barrels F41A21/12Cartridge chambers Chamber liners F41A21/14Arrangement of cartridge chambers lateral to the barrel axis F41A21/16Barrels or gun tubes characterised by the shape of the bore F41A21/18Grooves-Rifling F41A21/20Barrels or gun tubes characterised by the material F41A21/22Barrels which have undergone surface treatment F41A21/24Barrels or gun tubes with fins or ribs F41A21/26specially adapted for recoil reinforcement F41A21/28Gas-expansion chambers Barrels provided with gas-relieving ports F41A21/30Silencers F41A21/32Muzzle attachments or glands F41A21/325Mountings for muzzle attachments F41A21/34Flash dampers F41A21/36for recoil reduction; Stabilisators; Compensators F41A21/38adjustable F41A21/40Chokes for shotguns F41A21/42manually adjustable F41A21/44Insulation jackets Protective jackets F41A21/46Barrels having means for separating sabots from projectiles F41A21/48Barrel mounting means F41A21/481using partial or interrupted threads F41A21/482using continuous threads on the barrel F41A21/484using interlocking means F41A21/485using screws or bolts F41A21/487using friction F41A21/488Mountings specially adapted for pistols or revolvers