The FN 303 is based on a project by the Monterey Bay Corporation designated the XM303.

It is accurate at distances up to 35 metres (38 yd).įN also produce a pistol variant, the FN 303-P, in the same caliber, using a 7 round magazine with a self-contained gas cartridge. FN markets its own set of accessories for the launcher, including tactical vests, slings, carrying bags, and gas compressors. 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. 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 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 FN 303 uses compressed air to fire projectiles from a 15-round drum magazine. The FN 303 is a semi-automatic less-lethal riot gun designed and manufactured by Fabrique Nationale de Herstal.

Fn 303 less lethal launcher