*drools* ermahgerd that M16 is sick, makes me wish fully automatic AR's were available for non-military.
Edit: Not to mention a 7-inch barrel wtf! ;o aaargh That things gotta be a monster in close-quarters, the shortest I've seen in person is the M4 platform with a 14.5 to the muzzle break. This guy is a boss, I am so jelly it's not even funny.