The JS 9 mm (Chinese: JS 9 mm冲锋枪; pinyin: JS 9 mm Chōngfēng Qiāng; literally: "JS 9 mm Assault Gun") is a commercial export version of the QCW-05 (with the exception of different chambering.) It is a suppressed submachine gun developed by the Jianshe Industries (Group) Corporation of Chongqing. The JS 9 mm is capable of using any 9×19mm round, including the popular 9×19mm Parabellum round but has specifically been chambered for the indigenous, armour-piercing 9×19mm DAP92-9 round.