These include: anti-materiel rifles, anti-tank rifles, general-purpose machine guns, medium machine guns, unmounted heavy machine guns, portable flamethrowers, grenades, rifle grenades, underslung grenade launchers, grenade launchers, automatic grenade launchers, recoilless rifles, rocket-propelled grenades, man-portable anti-tank missiles, man-portable air-defense systems, and mortars under 100 millimetres (3.9 in) caliber.[2]