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 5975-01-037-0460
NSN 5935-00-814-3028
NSN 5975-00-826-3293
NSN 6685-01-295-3256
NSN 6645-01-290-3930
NSN 5905-01-421-4863
NSN 5996-01-381-4440
NSN 5950-00-222-1413
NSN 5930-01-430-5513
NSN 5915-01-406-4637
NSN 5996-01-425-7261
NSN 5990-01-148-4489