If you want to get rid of the stupid magazine disconnect safety, all you have to do is install an mk2 hammer and chuck the magazine disconnect safety lever & spring. It's pretty easy to change hammers on them. I've personally installed a few already with 0 problems. The best mk2 hammers to order are Volquartson or Power Custom. You CAN rework the mk3 hammer but I see NO reason to retain the mag safety.