I got this in a trade and need to recoup the funds I originally needed. It is a very clone correct Mk12 Mod1 build. It has a High Caliber Sales Built upper, LE6920 M4 lower, real M16A1 buttstock, buffer, and buffer tube. Even the stock screw is real M16A1 surplus. Comes with the Leupold MK4 MR/T...