The Daniel Defense DDM4V9 is designed to provide shooters with a full length quad rail option for a rifle with a low profile gas block. The DDM4V9 is built on a mid-length direct impingement operating system. The rifle features a 15" quad rail handguard with a Daniel Defense vertical grip for enhanced maneuverability and control. The pistol grip of DDM4V11 rifle is a proprietary Daniel Defense design with soft touch over molding and the 6-position buttstock features the same soft touch over molding at contact areas. Features of the Daniel Defense DDM4V9 RifleFree-Floated Cold Hammer Forged Barrel for long term durability and superior accuracyFull Length Top Rail for mounting optics of almost all sizesAmbidextrous Safety Selector Switch for left and right handed shooters Daniel Defense DDM4 V9 5.56x45mm 16" 1:7" Bbl CA Compliant Rifle 02-145-15175-055