The Daniel Defense DDM4V7 in .300 Blackout is a premium AR-15 built to the same specifications as the rifles Daniel Defense supplies to US military and law enforcement units. The 16-inch cold hammer-forged barrel and free-float MFR rail deliver the quality expected from one of the most respected names in duty-grade AR manufacturing. Type: Rifle Action: Semi-Automatic Caliber: .300 Blackout Capacity: 30 Year introduced: 2017, USA Weight: 72 oz Overall length: 32.5" Status: Active Intended use: Home Defense, Military, Law Enforcement