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 5996-01-648-7809
NSN 5835-01-246-0972
NSN 6145-01-382-1681
NSN 5935-01-250-1586
NSN 5990-01-476-9956
NSN 6610-00-456-0485
NSN 5960-01-096-0414
NSN 5895-00-773-2926
NSN 5930-00-219-6116
NSN 5905-01-478-6957
NSN 6105-00-286-5382
NSN 6150-01-294-8240