It doesnt matter if it functions or not. Even if it works it is inadequate for fighting in Afganistan. Both halves are way too short ranged, and the grenade munitions are too small to be effective unless the target is contained in a room or a bunker. It was designed based on the experience of the 80s and 90s by people who had only fought in jungles, cities, or out the back of a APC with tanks and artillery all around to support them. It was not designed for airmobile infantry holding a mountain top with nothing but rocks for kilometers around fighting people whos favorite tactic is to move from rock to rock sniping at them. It was not made with any care for our experience in Korea or the Russian experience in Afganistan, or even what the British encountered in the Falklands.