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Mk19自动榴弹发射器是美军在越战时开始装备至今的一种40mm口径弹链供弹的全自动榴弹发射器。该榴弹发射器采用自由枪机式自动原理,全自动发射40×53mm系列榴弹,其常用弹药为M430多用途高爆弹,对人员具有5m致死范围及15吗的杀伤范围,还可在一定范围击穿装甲运兵车,甚至是步兵战车。美国军械公司MK19 mod3自动榴弹发射器是MK19系列榴弹发射器的衍生型号,简化了枪架的设计,减轻了质量。枪口加装了消焰效果更好的直筒型消焰器,该榴弹发射器全长1095mm,总质量35kg,可由两人以上的步兵携带,亦可安装在车辆上。
Mk19 automatic grenade launcher is a 40mm caliber automatic grenade launcher which the U.S. armed forces started to equip until the Vietnam War. The grenade launcher using free-gun automatic principle, automatic launching 40 × 53mm series of grenades, the commonly used ammunition for the M430 multi-purpose high-explosive bombs, personnel with a lethal range of 5m and 15 kill, but also in a certain range Break through armored personnel carriers and even infantry combat vehicles. The US ordnance company MK19 mod3 automatic grenade launcher, a derivative of the MK19 series of grenade launchers, simplifies the design of the gun rack and lightens quality. The muzzle is equipped with a straight-type flame arrester with a better flame-suppressing effect. The grenade launcher is 1095mm in total length and 35kg in total mass. It can be carried by two or more infantrymen and can also be mounted on a vehicle.