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"This open bolt 9mm lightweight submachine gun has a high rate of fire."
— In-game description

The T-5 SMG is a submachine gun featured in Tom Clancy's Rainbow Six Siege. It was introduced in the Operation Blood Orchid expansion pack and is available for use by the Operator Lesion.


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 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.

In-game, designated as the T-5 SMG, this submachine functions similarly to the MP5, but features a faster firing rate.

Weapon Attachments

Under Barrel


  • There is a warning in Simplified Chinese written on the side of the magazine well, saying "警告:使用前阅读操作手册". Translated, it means "Warning: Read Operating Manual before Use".
  • The T-5 SMG in reality fires in an open bolt configuration, meaning that one in the chamber would be impossible, unlike the in-game counterpart, which holds one in the chamber. This error is shared with other guns with an open-bolt configuration.