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 5999-00-614-9486
NSN 5960-01-142-1995
NSN 6135-01-315-9214
NSN 6320-00-575-6072
NSN 6135-01-062-9356
NSN 6105-00-553-8943
NSN 6105-00-248-5772
NSN 5985-01-159-0855
NSN 6645-01-165-3785
NSN 5965-01-502-3650
NSN 5925-00-474-5401
NSN 5950-01-584-6468