Okay I have been searching the forum and haven't found the answer yet. I guess I am looking in the wrong spot. I put a 1911 recoil buffer on my mini this afternoon. Then went out to fire a few rounds through it. My problem is, on more than one occassion it tried to double-feed the rounds. Also when that happened the empty didn't fully eject. Would the buffer cause this or is it the fact it is an aftermarket steel mag? I have read about aftermarket mags having issues but they seemed to work fine until I added the buffer. Hopefully someone will help me. So far I really love the mini. Now I will say that I am not a fan of the Tapco Intrafusion stock I have on it and will be looking for an ATI stock to switch with. Maybe someone from central Florida will offer advice and then I could meet with them to work it out.