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 6320-01-429-9871
NSN 6685-01-259-7309
NSN 5925-01-376-4459
NSN 5960-01-183-8213
NSN 5945-01-179-7893
NSN 6145-01-476-8657
NSN 2925-01-461-6372
NSN 5999-01-043-9160
NSN 5998-01-573-1162
NSN 5855-01-513-8367
NSN 5855-00-797-8217
NSN 5945-00-476-4650