The CS/LS2, formerly known as the JS 9 mm () is a commercial export version of the QCW-05 submachine gun used by the People's Liberation Army. The weapon is designed specifically for police and law enforcement.
Development Following the development of the QCW-05 submachine gun, Jianshe Industries (Group) Corporation, a company under the China South Industries Group Corporation developed a police- and export-oriented version of the QCW-05, called JS 9. The first prototype of the JS 9mm is essentially a shortened QCW-05, with the same carry handle and iron sights, but with a modified caliber for the popular 9×19mm Parabellum. The second prototype removed the carry handle and opted for a Picatinny rail. The JS 9 mm was first showcased in 2005 at the China Police Equipment Exhibition.
Design The JS submachine gun is a bullpup weapon similar to the QCW-05. It is slightly shorter than the QCW05 and does not feature the carry handle. Instead, a Picatinny rail is located on top of the upper receiver, which allows customization of optics. The JS 9 mm features both automatic and semi-automatic firing mode.
The JS 9 mm is designed to take commercially available 9×19mm Parabellum or the indigenous 9×19mm DAP92-9 round. It is also capable of accepting widely used MP5 magazines along with its own double-column, 30-round, box magazine. A 50-round quad stack magazine for the 9×19mm was also developed, but did not enter production.
The JS 9 mm features several accessories, including daylight sights, night vision sights, infrared sights, and screw-on suppressors.
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