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 6650-01-452-1167
NSN 5975-01-085-2794
NSN 5915-01-170-5086
NSN 6110-01-054-5014
NSN 6240-00-169-6408
NSN 6135-00-840-6451
NSN 5930-00-370-0216
NSN 5895-01-483-1946
NSN 4140-01-392-0495
NSN 5920-01-631-8649
NSN 6135-01-642-0733
NSN 6150-01-449-2634