I was at the range today with our SWAT guys for a body armor demo. One buddy of mine just bought this rifle and we had a chance to put a few mags through it. Very well built and ran great. He had mounted a leupy 10x scope on it and at 100yrds everyone was plugging rounds through the brass door knob of the "kick door." Maybe not sub-MOA but for a 16" factory semi-auto not too bad.