This from a knowledgeable source:
The auto safety rod on a M21 does two things, at least on the single trigger guns; it does move the safe back on, but it also disconnects the trigger mechanism so both sears can be re cocked. On the non-auto safe version,, after the rods moves back, but doesnt move the safe, it also allows a spring to return the rod forward so the gun can be fired.. Yes you can cut the safety rod off and it wont move the safety on, but it also wont allow both sears to be cocked.
Lots of people have tried what you describe but to change the gun to no auto safe (single trigger) is a new safety reset rod, the vertical part of the rod that pivots on the trigger plate, the safety rod spring that goes on the front of the rod, and the cross pin that holds the spring in place. Galazan has all the parts. The vertical part has an slot where the pin on the push rods operates and just doesnt move the safety slide when the rod moves back.
Last edited by gil russell; 09/05/20 03:12 PM.