P90

Type	Personal defense weapon
Place of origin	Belgium

In service	1991–present
Used by	40+ countries (see Users)
Wars	Gulf War Afghanistan War Iraq War Libyan Civil War

Designed	1986–90
Manufacturer	FN Herstal
Produced	1990–present
Variants	See Variants: P90, P90 TR, P90 USG, P90 LV / IR PS90, PS90 TR, PS90 USG

Weight	2.54 kg (5.60 lb) empty 2.68 kg (5.9 lb) empty magazine 3.0 kg (6.6 lb) loaded magazine
Length	500 mm (19.7 in)
Barrel length	263 mm (10.4 in)
Width	55 mm (2.2 in)
Height	210 mm (8.3 in)

Cartridge	FN 5.7×28mm
Action	Straight blowback, closed bolt
Rate of fire	900 RPM (rounds per minute)
Muzzle velocity	715 m/s (2,350 ft/s)
Effective range	200 m (219 yd)
Maximum range	1,800 m (1,969 yd)
Feed system	50-round detachable box magazine
Sights	Tritium-illuminated reflex sight, back-up iron sights

The FN P90 is a selective fire personal defense weapon (PDW) designed and manufactured by FN Herstal in Belgium. The P90's name is taken from 1990, the year it was introduced. The P90 was created in response to NATO requests for a replacement for 9×19mm Parabellum firearms; it was designed as a compact but powerful firearm for vehicle crews, operators of crew-served weapons, support personnel, special forces and counter-terrorist groups.
The P90 was designed by FN in conjunction with the FN Five-seven pistol and 5.7×28mm ammunition. Development of the P90 began in 1986, and production commenced in 1990, whereupon the 5.7×28mm ammunition was redesigned and shortened. A modified version of the P90 with a magazine adapted to use the new ammunition was introduced in 1993, and the Five-seven pistol was subsequently introduced as a companion weapon using the same 5.7×28mm ammunition.
The P90 was developed and initially marketed as a personal defense weapon, but it could also be considered a submachine gun or compact assault rifle. Featuring a compact bullpup design with an integrated reflex sight and fully ambidextrous controls, the P90 is an unconventional weapon with a futuristic appearance. Its design incorporates several innovations such as a unique top-mounted magazine and FN's small caliber, high velocity 5.7×28mm ammunition.
The P90 is currently in service with military and police forces in over 40 countries throughout the world. In the United States, the P90 is in use with over 200 law enforcement agencies, including the U.S. Secret Service.The standard P90 is restricted to military and law enforcement customers, but since 2005, a semi-automatic carbine version has been offered to civilian shooters as the PS90.