Since I was missing 2 screws from my ATI stock, I went to Ace hardware and pretty close, then fixed them. I had to carve out some material(front portion and top cover) to get the front bolts on the receiver so that it would fit. I love the big mag release, but do not like the flimsiness of the ATI button half-moon set up. I can see it flexing, I just imagine it isn't going to hold up long. I will probably paint the shroud, but leave the mag release and handle clear.