This is a new Daniel Defense MK18 semi-automatic short-barreled rifle chambered in 5.56x45mm NATO (.223 Remington). This SBR features a 10.3-inch cold hammer forged, chrome lined barrel, 1:7” rate of twist, a2 birdcage flash suppressor, Daniel Defense RIS II free float handguard with a Flat Dark Earth finish, picatinny rail for opting mounting, overmolded Daniel Defense grip, and an adjustable stock. This rifle ships in its factory hard case with one 32-round magazine, owner’s manual, and a lock. The manufacturer part number is 02-088-17024.