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 7035-01-377-6255
NSN 6145-01-579-3510
NSN 5910-00-939-8222
NSN 5930-01-231-0258
NSN 5960-01-241-1844
NSN 5935-00-518-1150
NSN 5945-01-246-4524
NSN 5965-01-216-1994
NSN 5950-01-474-5010
NSN 5925-01-360-6661
NSN 5895-01-495-0244
NSN 6220-00-111-3604