Daniel Defense MK18 Upper 10.3" (5.56mm NATO) with MK18 RIS II Quad Rail
Daniel Defense MK18 upper receiver assembly chambered in 5.56mm NATO with a 10.3" barrel. Built around the MK18 RIS II two-piece quad rail for a continuous top Picatinny interface and full-length 1913 rail coverage for lights, lasers, and other rail-mounted accessories.
Upper is configured with a black RIS II handguard and an installed muzzle device.