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 6220-00-419-0635
NSN 5950-01-365-4302
NSN 6105-00-062-6249
NSN 6650-01-094-0133
NSN 6135-00-862-5736
NSN 6620-00-816-9755
NSN 4140-01-268-1351
NSN 4140-01-015-5137
NSN 5965-01-428-3348
NSN 5985-00-491-6517
NSN 5920-00-156-7375
NSN 6130-00-956-8834