The Daniel Defense DDM4 V7 Semi-Auto Rifle comes outfitted with a CNC-machined, 6061-T6 aluminum, Type-III hard coat anodized, free-floating handguard, featuring M-LOK attachment slots. An uninterrupted 1913 Picatinny rail runs the entire length of the receiver and handguard. The 6-position buttstock and pistol grip are constructed of glass-filled polymer with Soft Touch overmolding. The mil-spec upper and lower receivers are CNC-machined from 7075-T6 aluminum with Type-III hard coat anodized finish; the lower receiver has a flared mag well and a QD swivel attachment point. The cold hammer-forged, chrome-moly vanadium steel barrel is chrome lined with a 1:7 rate-of-twist rifling, and has a heavy phosphate exterior coating. The Daniel Defense flash suppressor is made of 17-4 PH stainless steel, with a salt-bath, nitride finish (attached with 1/2"28 thread). The Daniel Defense DDM4 V7 Semi-Auto Rifle operates with a midlength, direct impingement gas system. M-LOK handguard Uninterrupted 1913 Picatinny rail Mil-spec upper and lower receivers Type-III hard coat anodized Chrome-lined barrel with 1:7 rate-of-twist rifling Heavy phosphate barrel coating Daniel Defense flash suppressor Direct impingement gas system Soft Touch overmolded pistol grip 6-position buttstock