World's first practical submachine gun, designed by Hugo Schmeisser and used in the final months of WWI. Used a snail-drum magazine. The grandfather of all SMGs. Treaty of Versailles banned German production, but it spread worldwide. Type: Submachine Gun Action: Select-Fire Caliber: 9mm Luger Capacity: 32 Year introduced: 1918, Germany Weight: 64 oz Overall length: 32" Status: Discontinued Military use: Yes Intended use: military