have one, love it. no problems with it so far. more accurate than i expected. it feeds with any of my AR mags without a single issue in the 1600 rounds i have through it so far, mostly the cheap silver bear brand. i have to say that i've been real impressed with the keltec products. i'm going for a SU-16c next. a small warning though, the PLR-16 is louder that you think. it will definatly wake up the neighbors. also, i have great doubts about the defensive capabilities of the 223 caliber with a barrel this short (not that the 223 is a real impressive caliber for that to begin with). it is a fun gun for cheap. get it before they ban 'em.