For a second there I thought you were asking about his other little friend. I don't have the answer but welcome to the boards, it has however, been discussed quite often here before so if you look out for it you may find it.
correctamundo. the army use it. some people believe its a SOPMOD M4 carbine buts its nots cos the M4 carbine is smaller and it's single or automatic when the m16 fires burst or single and tiny is clearly firing burst rounds.