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 5895-00-767-5397
NSN 5910-01-062-2344
NSN 6650-01-521-0902
NSN 5935-01-461-9371
NSN 5920-00-490-9176
NSN 5930-00-886-2842
NSN 6110-01-535-6130
NSN 5945-01-260-7974
NSN 5910-01-026-2195
NSN 5985-01-628-3480
NSN 5999-01-446-6541
NSN 6145-00-360-7760