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 6610-01-186-4106
NSN 6145-00-511-9705
NSN 6105-01-337-1927
NSN 5996-00-765-1401
NSN 5920-01-309-9216
NSN 5895-01-645-4166
NSN 6150-00-304-7342
NSN 5950-01-561-6953
NSN 6135-01-031-8078
NSN 7035-01-202-9250
NSN 5999-00-865-9420
NSN 5930-01-386-3068