The Mark 46 Mod 1 lightened SAW is a remarkable piece of hardware.
It’s basically a crew served weapon converted to a man-portable light machine gun.
The M46 fires from an open bolt and features a quick-change barrel system. Chambered in 5.56 with disintegrating links, this firearm is designed to work with a 100 round belt bag, but you can realistically fire as much as you can carry.
See the M46 Mod 1 in action with the video below.