The FN PS90 is the US-market civilian semi-automatic version of the P90 PDW, fitted with a 16-inch barrel to comply with NFA barrel length requirements for rifles. It retains the distinctive bullpup layout, top-mounted 50-round magazine, and ergonomics of the P90 in a legal semi-auto configuration. Type: Rifle Action: Semi-Automatic Caliber: 5.7x28mm Capacity: 50 Year introduced: 2005, Belgium Weight: 100.8 oz Overall length: 26.2" Status: Active Intended use: civilian