Any one having trouble with SU-16 factory mags? Mine started to not feed right causing a jam. The lips would spread when loaded. One of them won't hold ten rounds with out bursting them out. I would load ten rounds set them down and 3 or 4 would pop out. However my 30rd AR mags work just fine. Is there an upgrade on the factory mags? The mag walls seem really weak. My SU is one of the first ones out and of course my firing pin broke but Kel-Tec sent me the new ones and I've had no problems. Just want to see if any body else has had this problem. Maybe it's just me but if I did not have my ar mags it would be a bummer. It would be a real bummer for the folks in hi cap mag banned states if were true for all the factory mags.