The Australian-designed Owen submachine gun is a weapon with quite a story behind it. The Owen is arguably the best subgun used during WWII, and also probably the ugliest. Its mere existence was a drawn out struggle between the inventor and manufacturer and the Australian Army bureaucracy, and yet it saw service through into the Vietnam War. For lots more information on the Owen, check out: http://www.forgottenweapons.com/owen-smg/