cheater!!!!!!! ya got this elketik spinnin thang!!!! that ain't fair!!!!!! youse prably got them dremel tools and drill press thingy too. why back in the day alls i had is blacksmith furnace and a hammer!!!!! i tells youse we has to make our own parts to fix parts we's already did.......
great job!!!! esp the drill bit weld!!!! i've never thought about using drill bit....you learn something new everyday.
i don't know if it helps or not, but this is what i do (or my gunsmith)
http://www.thehawkenshop.com/Instructions/gms.pdf