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 5999-01-042-0347
NSN 6320-00-116-3658
NSN 6220-00-674-4008
NSN 5905-01-644-7869
NSN 5925-00-160-4747
NSN 5915-01-211-7777
NSN 7035-00-337-8745
NSN 5950-00-740-8897
NSN 5950-00-539-7172
NSN 5920-00-900-5336
NSN 5965-00-004-6371
NSN 4140-00-528-2921