I'm gonna' be replacing the firing pin, extractor, springs, etc. and don't have all my parts here yet. Was thinking of sending the bolt block to CPC and ordering the replacements in the meantime. But that's a good thought concerning the pinning of the firing pin. I think you just answered my question . Thanx.viper1314 said:Id say that would be a question to ask randy personally, I wouldnt see where it woudl be a problem except for maybe pinning the firing pin,other then that i dont see the problem, but i have a question for you.......why would you even want to do that ?