An item which is an integral part of the barrel extension group of a weapon. It is designed to prevent the loss of gas pressure, by locking the barrel extension to the bolt during firing.
Classification: Parts and accessories for military rifles of heading 9301
NSN 5925-01-644-3379
NSN 5999-01-056-4490
NSN 5990-01-472-2447
NSN 6610-01-285-8444
NSN 5895-01-254-1475
NSN 4140-01-433-9403
NSN 6610-01-453-4269
NSN 6320-01-050-1290
NSN 6135-01-202-8113
NSN 5855-01-430-9689
NSN 5965-01-600-0566
NSN 6150-00-125-4543