I had nothing to do the other night, so I fired up Flash and proceeded to draw what has come to be know as ARt. http://www.clintblizzard.com/images/KACStonerSR16-3.gif
A Knight's Armament SR-15. I really like this one.
My brother's idea. The ammo here is kind of limited, but I didn't feel like drawing more ammo cans. h
Also, the flashlight mount is (probably obviously) not real. I just made something up.