My base gun for this (and I know it's not a CAR-15) is a jg m733. Judging by the looks of the gun, I can't tell what color it is. It looks like black, some sort of green, and maybe khaki. Have a look for yourself
http://www.imfdb.org/index.php/Blood_Diamond Also I have no idea where to get the flash hider and that flashlight mount thing. Anyone wanna help?