Bought it for $350, the base gun is a kwa cqr mod 1. Ajax installed a metal lower receiver and it has a magpul pts hand guard. The rest of the gun externals is stock. Internally just about everything in it is parts installed by Ajax. The gun has an fps of 450 and a rof of 20 (with 11.1 lipo). Range wise the gun's range is between 200-220ft (r-hop).