They are all supposed to interchange. Either the lock, or the barrel threads are partly stripped. If the rifle were mine I would first try a different gas cyl. lock. If it is the barrel threads you do have a real problem.
They are all supposed to interchange. Either the lock, or the barrel threads are partly stripped. If the rifle were mine I would first try a different gas cyl. lock. If it is the barrel threads you do have a real problem.
Ed reluctantly no longer in the Bitterroot