US Ordnance Inc: M60E6 - The latest improvements to the M60 Series of machine guns. It is a gas operated, disintegrating link, belt fed, air cooled machine gun. It fires from an open bolt and features a quick change barrel. The M60E6 features a machined aluminum feed cover with integrated M1913 Picatinny rail for mounting optics. An aluminum M1913 rail handguard provides for the mounting of infrared laser aiming devices.