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 6620-00-545-5689
NSN 5960-01-260-3973
NSN 6240-01-622-0718
NSN 5965-00-342-5126
NSN 5915-01-352-6836
NSN 5960-01-215-0992
NSN 5999-01-452-8745
NSN 5998-01-559-9078
NSN 5950-01-544-0718
NSN 6220-01-133-4286
NSN 6320-01-352-5653
NSN 5930-00-005-0383