I had reported in an earlier thread about my 4th firing pin failure, so I decided to make a new pin using the boss of an original pin and silver soldering part of a (similar) BAR pin to it. I went to visit a gunsmith/C2 mfg friend some of you may know, Tony Veronesi. I told him of my plan. He said it would be better to make a new one out of a piece of bar stock. He said the problem with the pins (in his opinion) the original and aftermarket pins have the capability to extend too far out of the bolt face, possibly through inertia. SO he made me a pin that CANNOT extend past .045" out of the bolt face. We shot a hundred rounds just to make sure it worked.
I also bought a titanium pin but an inquiry of their reliability varied so I'll try Tony's pin, I'll keep you posted.