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 5950-00-824-0270
NSN 5990-01-586-8202
NSN 6110-01-640-7237
NSN 5985-01-564-7525
NSN 6150-01-495-7673
NSN 5996-00-586-5126
NSN 6685-01-634-0611
NSN 5985-00-240-7420
NSN 6220-01-430-0442
NSN 6685-00-527-6545
NSN 6320-01-261-5983
NSN 5996-01-429-9106