Thanks for everything guys! Next I need to install the bullet guide and file the receiver down and im all done. Just to clarfiy, I installed the tapco G2 hammer and trigger, pistol grip, stock, and all that good stuff. Question is, I see people talking about different things like a retainer for a FCG? Can anyone elborate on what this is, or if I need to install some other small components that im not aware of? Everything seems to function fine, although I havent fired it yet. I just want to make sure I have everything I need before I go try to fire it and something bad happens. Also, I am tryi