CS/LS7
The CS/LS7 (military designation QCQ-171) is a Chinese submachine gun developed by the Jianshe Industries (Group) Corporation of Chongqing, chambered in the 9×19mm DAP-92-9 or 9×19mm Parabellum ammunitions. == History == The CS/LS7 is part of a weapon development program initiated by the Ministry of Public Security to acquire a new type of submachine gun, replacing the older Type 79 submachine gun.