I am not going to lengthen the bolt. For the firepin my plan is to use some 1/4" drill rod. picture a AR firing pin where the shoulder of the pin stops on the carrier.Originally Posted by SA58
My thought is to turn down the rod for the part that goes inside the bolt and then leave the larger diameter "tail" of the pin. It wont need to be more the .5" long.
I will have the pin reduced in diameter where the retaining pin goes.
I want to bore out the back of the bolt a little ways so I can stick a spring back there.
If it looks like having the pin stop on the back of the bolt is tearing something up, I can set up a strong cross pin to stop the hammer just shy of slamming the pin into the back of the bolt.
I "think" this will work. I have it all designed in my head.
Next step is to get the gas tube and piston done. Then I am going to do the FCG. Then the firing pin.