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 6650-01-211-2673
NSN 5905-01-261-5314
NSN 5920-00-276-8657
NSN 5895-00-055-3643
NSN 5975-01-048-9301
NSN 5925-01-461-7586
NSN 5855-01-630-0316
NSN 5945-00-198-4127
NSN 5975-01-360-6484
NSN 5975-01-448-7286
NSN 5996-01-267-8082
NSN 6610-01-360-3564