Quote Originally Posted by Mk VII View Post
Often they will not interchange, and the use of the correct gauges is desirable to check CHS, striker protrusion, bolthead overturn, etc.
Thank you. That's discouraging. My bolt seems to have broke somehow. I took it to a gunsmith who said a "clip" or some piece broke off the bolt and it wouldn't close properly, which it doesn't. I finally found one on GB and bought it. I might have wasted $125.