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 6685-01-195-7630
NSN 5990-01-056-6413
NSN 6620-00-225-4870
NSN 6320-01-576-6310
NSN 6610-01-252-1096
NSN 6105-00-615-9979
NSN 6220-01-330-6650
NSN 5960-00-357-3043
NSN 6135-00-269-5843
NSN 6650-01-338-9998
NSN 5990-01-147-5225
NSN 6135-01-116-3385