The Browning M2 .50 Caliber Machine Gun, Heavy barrel is an automatic, recoil operated, air-cooled machine gun with adjustable headspace and is crew transportable with limited amounts of ...

The bolts are fired from the gun with a linear motor. [Jason] is using eight coils along the length of his barrel ... the video of this futuristic Gauss machine gun below.

light machine gun with fixed headspace and quick change barrel feature. The M249 engages point targets out to 800 meters, firing the improved NATO standard 5.56mm cartridge. The SAW forms the ...