The XM312 is a heavy machine gun derived from the XM307 25 mm autocannon and chambered for the .50 BMG cartridge. It was designed in response to a request by the U.S. military for a replacement for the aging M2 Browning heavy machine gun, and as a complement to the heavier XM307 Advanced Crew Served Weapon grenade launcher.

XM312重机枪是一把发射12.7 × 99毫米NATO（.50 BMG）口径的 重机枪，亦是 XM307榴弹发射器 25毫米自动 榴弹炮 的 衍生产品。 XM312主要用于取代在美军服役已久的勃朗宁M2重机枪，因此XM312的设计针对M2的缺点而作改进，但射速远低于M2令美军不甚满意。 重量：19公斤（42磅）（机枪主体及三脚架）。 [2] 携带：士兵手携（两人）或车载。 高度：三脚架高18寸。 全长：1346毫米。 枪机运作：混合气动及枪管短后座作用。 射速：260发每分钟， 勃朗宁M2 …

The pod was designated XM12 (possibly standardized as M12) by the US Army and the same pod was designated SUU-16/A by the US Air Force. It was sometimes mounted on F-4 Phantom aircraft as a stopgap until internal-gun models entered service.

2021年5月12日 · Page details technical specifications, development, and operational history of the General Dynamics XM312 Prototype Heavy Machine Gun (HMG) including pictures.

There is no doubt that the XM312 is a futuristic weapon and the next logical evolution of the heavy machine gun platform. The weapon's physical characteristics include a smooth contoured receiver with a molded casing. The barrel protrudes slightly from the fairing and the muzzle brake is noticeably missing.

2007年11月1日 · The XM312 is one-third of the weight, has less recoil, and provides Soldiers with the punch of a .50 caliber machine gun in the footprint of a 7.62mm weapon system. The XM312 is a spinout of technologies developed in the 25mm XM307 ACSW program.

SUU-16/A (XM12 / M12) Cannon case developed primarily for the machine F-4C/D Phantom II to complement the rocket armament also on the shooting options. In the sleeve was rotating gun M61A1 Vulcan powered folding náporovou turbine.

2015年5月14日 · I think the XM12 hasn't been around too long, so there might not be many people with actual hands on experience with it. I've been seriously considering the same after shortlisting it. After doing my own reading of reviews, Akkar Churchill shotties in general are good value for money.

The XM12 is a tactical style Churchill for those shooters who love their accessories. With top mount and dual side mount picatinny rails, there's ample room for reflex sights, red dots, torches, lasers, you name it. With a full matte black treatment and synthetic stock, this is a tough no nonsense gun built to hunt har

XM12是在630钢的基础上发展的 马氏体沉淀硬化不锈钢，除高强度外，还具有高的横向韧性和良好的 可锻性，耐蚀性与630相当。 XM12主要用于具有高强度、良好韧性又要求有良好的耐蚀服役环境，如高强度锻件，高压系统阀门部件，飞机部件等。 热扎棒 10~100mm,锻制棒：100mm~350mm,冷扎薄板0.05mm-4.0mm, 热扎板:4mm~14mm,带2mm-10mm,各尺寸规格锻件环件，库存个别牌号不定尺。 XM-12 一、XM12材质介绍：XM12是在630钢的基础上发展的 …