Daniel Defense DDM4 V7 chambered in .300 Blackout, combining DD's Cold Hammer Forged barrel and MFR rail with the suppressor-optimized cartridge. The 16-inch barrel makes this a legal non-NFA configuration that can also run an SBR upper if desired. Type: Rifle Action: Semi-Automatic Caliber: .300 BLK Capacity: 30 Year introduced: 2016, USA Weight: 96 oz Overall length: 32.5" Status: Active Intended use: Service, Home Defense, Suppressor Host