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 6220-01-073-3338
NSN 5925-01-030-9227
NSN 5905-01-362-5596
NSN 7035-00-205-1932
NSN 5905-01-459-1484
NSN 5999-01-439-5332
NSN 5855-00-631-4565
NSN 5945-00-564-6979
NSN 6130-00-930-3158
NSN 5998-00-840-6834
NSN 6130-01-296-5917
NSN 2925-01-658-4470