The M203 40mm Grenade launcher mounted on a M16A2 with a heat sheild hand guard. My personal favorite weapon during MCT. Man I seriously wish my airsoftgun wasn't missing certain pieces or else it would look just like that.
And beside the rifle and launcher. Is the M16A4 with RCO sight, "broom stick" bi-pod, PEQ2 and three point sling attachments.