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 6650-00-382-2996
NSN 5950-01-425-4005
NSN 5935-01-542-3815
NSN 6145-01-544-8240
NSN 5925-01-194-1538
NSN 5985-00-182-8122
NSN 5950-00-529-0007
NSN 6685-01-562-1636
NSN 5990-01-532-6113
NSN 6320-01-056-1164
NSN 6105-01-420-9474
NSN 5910-00-133-2952