FN 303

FN 303
A FN 303 anti-riot gun.
Type	Riot gun
Place of origin	Belgium
Service history
Used by	See Users
Wars	Afghanistan War[1] Iraq War[1] Libyan Revolution[2] 2013 Lahad Datu standoff
Production history
Manufacturer	FN Herstal
Produced	2003–present[3]
Specifications
Mass	2.3 kg (5.07 lb)
Length	740 mm (29.1 in)
Barrel length	250 mm (9.8 in)
Caliber	17.3 mm (0.68 in)
Action	Compressed air
Muzzle velocity	85 m/s (279 ft/s)
Effective firing range	70 m (77 yd)
Feed system	15-round detachable drum magazine
Sights	Front blade, rear notch

The FN 303 is a semi-automatic less-lethal riot gun designed and manufactured by Fabrique Nationale de Herstal.

The FN 303 uses compressed air to fire projectiles from a 15-round drum magazine. It is designed to incapacitate the target through blunt trauma without causing critical injuries, and is most widely used for riot control and other kinds of combat where lethal weapons should be avoided.

The 303 can be fired from the shoulder using adjustable iron sights, or it can be mounted in an under-barrel configuration on most assault rifles when its stock assembly is removed (in this configuration, it is designated M303). It also comes with a top-mounted Picatinny rail that can fit most commercial weapon accessories, such as telescopic sights, laser sights and tactical lights. FN markets its own set of accessories for the launcher, including tactical vests, slings, carrying bags, and gas compressors. It is accurate at distances up to 35 metres (38 yd).

FN also produce a pistol variant, the FN 303-P, in the same caliber, using a seven-round magazine with a self-contained gas cartridge.^[4]