Daniel Defense DDM4 V3 with 16-inch cold hammer forged barrel. Mid-length gas system. Early Omega X rail. Historical DD model that bridged V1 and V5 development. Type: Rifle Action: Semi-Auto Caliber: 5.56 NATO Capacity: 30 Year introduced: 2007, USA Weight: 62 oz Overall length: 32.25" Status: Discontinued Intended use: Duty, Defense, Patrol