The FN PS90 Threaded features a threaded barrel for suppressor or muzzle device attachment while retaining all standard PS90 features including the 50-round top-mounted magazine. Type: Bullpup Rifle Action: Gas-Operated Caliber: 5.7x28mm Capacity: 50 Year introduced: 2005, Belgium Weight: 6.4 oz Overall length: 26.2" Status: Active Military use: Yes Intended use: Home Defense, Tactical, Suppressor Host