IPIQ

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F41

WEAPONS

F41A

FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE

21/00

Barrels; Gun tubes; Muzzle attachments; Barrel mounting means

F41A21/10

Insert barrels, i.e. barrels for firing reduced calibre ammunition and being mounted within the normal barrels