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 5960-00-021-5618
NSN 5960-01-485-0437
NSN 6645-01-076-4655
NSN 5835-01-236-6514
NSN 5920-01-557-1156
NSN 5960-00-677-7444
NSN 6150-01-227-7303
NSN 6145-01-113-1363
NSN 5945-01-075-2715
NSN 5920-01-096-1864
NSN 5965-00-082-8987
NSN 5945-00-925-4764