PS90

The PS90 is a semi-automatic firearm manufactured by FN Herstal. It is a civilian variant of the military P90 submachine gun. The PS90 is chambered in the 5.7x28mm cartridge, which was developed alongside the P90. The firearm features a distinctive bullpup design, meaning the action is located behind the trigger group, resulting in a more compact overall length while maintaining a full-length barrel.

Its construction utilizes a polymer receiver and a rotating bolt system. The PS90 is known for its ambidextrous controls, including an ambidextrous safety selector and magazine release. The magazine is typically a translucent 50-round box magazine that inserts horizontally into the receiver and rotates 90 degrees before feeding rounds into the chamber. This unique feeding mechanism contributes to the PS90's compact size and reliability.

The PS90 is often used for recreational shooting, sport shooting, and as a home defense firearm. Its lightweight nature and low recoil make it relatively easy to handle. Various aftermarket accessories, such as optics and foregrips, are available for the PS90, allowing for customization. The firearm's design emphasizes modularity and ease of maintenance.