"The highly-recognizable look of the Daniel Defense DDM4 V9 AR-15 Rifle makes it stand out on a crowd due to it's construction of hard-use, true mil-spec parts. DD rifles are a favorite for many shooters. The DDM4 V9 is an AR-15 with a 16"" barrel and full-length handguard."". The twist rate is 1:7 on the chrome-lined, cold hammer-forged barrel. The direct impingement gas system features a low-profile gas block and mid-length gas tube. The DD RIS (Rail Interface System) II Picatinny quad rail handguard is CNC machined from 6061-T6 aluminum and finished in type 3 hard coat anodizing. The receiver group is machined from 7075-T6 aluminum. The M16 bolt carrier group is MP tested, chrome lined, and featured a properly staked gas key. Engineered for suppressed fire, the DD GRIP-N-RIP charging handle redirects gases away from the user's face. The charging handle is also ambidextrous for left and right-handed use. The Daniel Defense rubber overmolded grip is a nice touch and pairs well with their rubber rail-panel covers and overmolded stock, both of which are included. DD is a well-trusted brand with combat-grade, quality components. The extra confidence that comes with the name makes it a nice addition as combat effective platform to your collection. 1:7 twist, CHF, chrome-lined, 16"" barrel Mid-length DI gas system DD Flash supressor DD RIS II Picatinny quad rail DD collapsable stock M16 BCG DD GRIP-N-RIP ambidextrous charging handle Rubber overmolded pistol grip Rubber rail panel covers"