I'm assuming you are talking about the M&P 15 sport. My buddy has one. we went out and shot it the other day. we ran two diffferent kinds of ammo through it, lake city and Tula. both fed great without a single failure to feed or extract. comes with a pmag and magpul rear sight. it doesnt have a FA, dust cover or chrome lined barrel which will make some people hesitant to buy one. i'm no expert but it seems like a pretty good buy for the money.