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Grenade launcher : ウィキペディア英語版 | Grenade launcher
A grenade launcher or grenade discharger is a weapon that launches a specially-designed grenade or a grenade cartridge with more accuracy, higher velocity, and to greater distances than a soldier could throw it by hand. Grenade launchers can either come in the form of standalone weapons (either single-shot or repeating) or attachments mounted under the barrel of a rifle. Some rifles have been designed to fire rifle grenades, either from their muzzle or from a detachable muzzle-mounted launcher. Larger grenade launchers, such as the Mk-19, may be mounted on vehicles. Today, most grenade launchers are man-portable, shoulder-fired weapons issued on a squad level, although larger launchers are issued at the company or battalion level. The most common grenade-round in use by NATO is the 40 mm fragmentation grenade, which is effective against a wide range of targets, including infantry and lightly armored vehicles. The ability of the grenade launcher to loft payloads in a high arc has resulted in many "specialty" grenades, such as less-lethal sponge grenades, flares, and even a video camera that surveys the battlefield from a bird's-eye view. == Types ==
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