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 5965-01-208-6903
NSN 6105-01-180-5013
NSN 5960-01-029-2767
NSN 6105-01-533-2419
NSN 5990-00-415-5351
NSN 6150-01-375-2261
NSN 5996-01-246-7139
NSN 2925-01-481-7170
NSN 5998-01-381-3741
NSN 6130-01-242-6195
NSN 5935-01-530-1820
NSN 2925-00-265-7539