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 5945-01-422-1255
NSN 4140-00-435-0436
NSN 5990-01-094-7740
NSN 6105-01-197-7687
NSN 6240-00-722-0268
NSN 5855-00-586-6255
NSN 5960-01-023-3615
NSN 6645-00-062-6211
NSN 5945-00-350-0065
NSN 5925-01-338-6852
NSN 5935-01-132-3432
NSN 5999-01-037-8564