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 2925-01-510-9378
NSN 6320-00-994-0179
NSN 5999-01-401-5322
NSN 6105-00-264-0355
NSN 6105-01-468-5102
NSN 6620-00-022-8056
NSN 6620-00-189-2381
NSN 6645-00-987-3409
NSN 5985-01-044-4530
NSN 6220-01-606-1852
NSN 6150-00-111-0881
NSN 5945-01-598-1225