FNH USA CARBINES PS90 SEMI-AUTO CARBINE Based on the FN P90 and built around the revolutionary, the PS90 is a compact, lightweight and completely ambidextrous firearm capable of fulfilling numerous security, personal defense, competition and sport shooting roles. The 10- or 30-round box magazine runs horizontally across the top of the PS90, while fired cases are ejected downward where they cannot interfere with the user. The extended civilian legal 16.04" barrel with integral muzzle brake and semi-automatic closed bolt operation give the PS90 outstanding accuracy. This Tri-Rail version allows the operator to mount various sighting and beam light combinations.