Diamondback DB15 Features The Diamondback DB15 .300 AAC Blackout rifle is engineered for consistent performance featuring a 4150 chrome moly barrel with a 1:8 twist rate for reliable accuracy across a range of loads. Its direct impingement system and carbine-length gas system ensure smooth cycling and dependable operation. This .300 Blackout AR-15 rifle also includes an A2 flash hider to help reduce muzzle flash during firing. Built on a forged 7075-T6 aluminum receiver the rifle is finished with a black anodized hard coat for enhanced durability. The 15 Diamondback M-LOK forend provides ample space for accessories while the MOE carbine stock and MOE grip deliver comfort and control. Additional features such as a forward assist dust cover and flat-top receiver make it a fully functional and adaptable platform. Diamondback DB15 Specifications Manufacturer: Diamondback Model: DB15 Caliber: .300 AAC Blackout Capacity: 30+1 Magazines Included: 1 Action: Semi-Auto Operating System: Direct Impingement Barrel Length: 16 Barrel Material: 4150 Chrome Moly Barrel Finish: Black Twist Rate: 1:8 Thread Pattern: 1/2x28 Muzzle: A2 Flash Hider Gas System: Carbine Length Receiver Material: 7075-T6 Aluminum Receiver Finish: Black Anodized Handguard: 15 M-LOK Stock: MOE Carbine Grip: MOE Overall Length: 32.5 - 35.75 Weight: 8.26 lbs Safety: Manual Rail: A3 Flat Top Trigger: Mil-Spec