After about 2 hrs of work I have gotten 3 of those 30rnd detatchable mags to function properly and to fit right. I even have one of those older metal follower chinese mags. I havent gotten to shoot it yet but I may be able to this next week, Lord willin. I am in the market for a factory 10 if anyone has a good place to buy one. I am not worried about the moronic laws, I would just like to have a factory one for it, just in case I bench shoot it.