Abstract: This invention relates to new and improved methods and apparatus for suppsion of the light emissions of weapon systems capable of sustained gunfire, such as machine guns, and involves utilization of the projectile propellent gases to aspirate ambient air into the barrel of the weapon for ad-mixture with the gases, whereby the intensity of the light emissions during sustained firing of the weapon are substantially reduced. In accordance with the present invention, a plurality of restricted orifices are provided in the gun barrel adjacent the muzzle thereof through which ambient air is aspirated.

Abstract: Sighting system for hand held grenade launchers including a rear leaf sight aving two sets of range indicia markings. A first front sight is spaced from the leaf sight for short to intermediate sighting alignment with one set of rear sight markings and a second front sight is offset from the first sight and spaced from the leaf sight for intermediate to long range sighting alignment with the other set.