16,000 units made together by Bergmann's company and by Anciens Etablissements Pieper (under license), most chambered in 9mm Largo.[5] Bergmann MG 15nA machine gun; light machine gun (by World War I standards, 12.9 kg) manufactured in 5,000 units towards the end of the war.[5] Bergmann MP 18; about 17,000 made, not counting various clones and close copies.[7] Haenel Schmeisser mod.