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 5996-01-330-0684
NSN 5905-01-269-3983
NSN 6150-01-582-8155
NSN 5990-01-211-6136
NSN 5905-01-338-0893
NSN 5975-00-877-4876
NSN 6220-01-509-9470
NSN 6685-01-458-3106
NSN 5905-00-517-8731
NSN 6220-01-627-3113
NSN 6645-00-262-7448
NSN 5920-01-520-4447