The DDM4v1, the original Daniel Defense Rifle, is built with a Cold Hammer Forged 16" M4 Profile barrel with a Carbine gas system. It comes installed with our proprietary front sight base which is precision CNC machined from a solid billet of 4140 steel. This FSB features a serrated curved design to minimize glare and is salt bath nitride treated minimizing corrosion and wear. The DDM4 Rail 12.0 FSP allows the operator to mount a weapon light or aiming device forward of the front sight for optimal ergonomics and a clear line of sight. Quick disconnect attachment points are integrated to the front and back on both sides of the rail for fully ambidextrous sling attachment. This rifle also comes with the newly designed, rugged and comfortable Daniel Defense Buttstock and Pistol Grip.