owen gun
The Owen gun, or Owen machine carbine, was an Australian submachine gun designed by Evelyn Owen in 1938. It was used during the World War II (from 1942) by the Australian Army until 1971.
The gun is recognizable by its top-mounted magazine, vertical foregrip and the side-mounted sight required to allow the shooter to aim past it. Available in both wooden or triangular skeletonized metal stock.