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 6685-00-815-8869
NSN 5975-01-406-4249
NSN 5925-01-229-6342
NSN 6110-00-905-6148
NSN 5920-01-497-5985
NSN 5990-00-067-6791
NSN 6320-01-532-4026
NSN 6610-01-515-3363
NSN 7035-01-061-6424
NSN 5835-01-468-4210
NSN 6220-00-806-2616
NSN 5998-00-843-1125