I bought this Aero precision ultralight SPR, and milled off the excess left over from the stock rail. One single UTG scope ring weighed more than the new Aero! It seemed to bring a little more weight back into my shoulder. I'm currently searching for a replacement rail for the stock one, and I want one that clamps, not bolts into the receiver. I find it very dangerous that the current rail bolts into the receiver in the same tapped holes as the grub screws that hold the barrel. Any tips on a rail that will fit according to the measurements shown, pls let me know.