The ČZW 9 PS was a Czech submachine gun designed and manufactured by Czech Weapons s.r.o in prototype form only in 2004.
The developmental history of the ČZW 9 PS is not well documented; however, it is said to be designed to "significantly increase firepower" when deployed in light reconnaissance units. The ČZW 9 PS is also designed to be used by law enforcement agencies. It, like most other ČZW weapons, appears to be a testbed for delayed blowback technology.
The ČZW 9 PS is a submachine gun using lever delayed blowback. The weapon features a folding stock; the weapon is said to have low recoil due to the patented action. The weapon is select fire and fires from a closed bolt. The weapon features adjustable sights that can be set up to 200 metres (660 feet; 220 yards). The overall platform of the weapon is very similar to the ČZW 556.
- ČZW 9 FC
- ČZW 9: related weapon