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 5905-00-292-1113
NSN 5835-01-363-4527
NSN 6130-01-331-3448
NSN 5930-00-039-8823
NSN 5975-01-163-8806
NSN 6105-00-194-6583
NSN 5950-00-223-9890
NSN 5910-00-554-1422
NSN 5905-01-513-5536
NSN 5975-01-519-3637
NSN 6240-01-248-9911
NSN 5915-01-500-9993