The M-16, in its original wretched configuration weighed 6 ½ pounds. Its most recent evolution, the M4AI Carbine, also weighs 6 ½ pounds. With a 30-round magazine, it weighs 7.49 pounds. But then, when you add a night-vision device, ACOG, EOT Holographic Sight, suppressor, forward hand grip, Infrared sight, FLIR (Forward Looking Infrared Radar), power-drink dispenser, grenade launcher, and bayonet, you probably have the equivalent of grandpa’s M-1 Garand. Or worse. Not to worry; today’s Marine or Army infantyman has to carry so much other stuff** that a 10-pound rifle doesn’t matter much.