The Sturmgewehr 52 (STG-52) was a battle rifle manufactured by the government-owned W+F Bern of Switzerland. It was chambered in the 7.5mm Kurzpatrone cartridge and later the 7.5mm Swiss service round as the Sturmgewehr 54, which was fed from the left-hand side. The Sturmgewehr 52 was heavily patterned after the German FG 42 as it was fed from the side from a 30- or 40-round magazine and was also fitted with a muzzle attachment capable of launching rifle grenades.