We got two of these in 9mm for work. Both rifles are VERY accurate, the lowers are well thought out and function perfectly with Glock mags. (the only aftermarket we have tried are the ATI glock 17 and glock 18 mags, and they function flawlessly). the enlarged mag release is nice, and so is the trigger guard...both nice touches. The uppers are nice, finish is great, handguards fit, no rattle, no movement. Only thing that we had to do was swap out the charging handle, as the ones that came on them were a PITA, and lead to torn gloves and bleeding fingers...but swapping them out took care of that problem, and was inexpensive to boot. Lone wolf customer service was more than helpful with us, and the company armorer Zack was great, helped us out with the charging handle issue, was more than concerned (not fake about wanting to help) about the issue. All in all, I have to say the product is great...exactly what we were looking for, and the customer service is just the icing on the cake! Good job guys!