In the years before World War II, the water-cooled, belt-fed heavy machine gun represented the international standard. Then during that conflict, the air-cooled light machine gun came into general ...

For gun-making expertise ... which are made from a hardened Inconel alloy for extreme light weight, Sims said. The belt-fed Textron Systems' NGSW AR variant and the magazine-fed rifle variant ...

The first practical self-loading machine gun was developed in the mid-1880s by a self-taught American engineer, Hiram Maxim. His recoil-operated, belt-fed gun fired at a rate of approximately 600 ...