New plastic telescope ammo machine gun is light as a rifle ? The Register Combine that with the predator ammo pack recently developed by our boys, and there's no good reason why a heavy gunner couldn't carry 2k rounds linked to the gun at all times. Serious business. I expect box mag variants to follow, featuring lighter barrels and 40-50rd magazines. Our boys would be carrying just 1-2 spare mags. Less weight, more firepower, win, win. As long as it's piston driven. . . We each need one!