Diamondback DB15 Combo 5.56 NATO/300 Blackout 16" 30-Round Rifle

The Diamondback DB15 Combo is a semi-automatic AR-15 pattern rifle sold as a bundle with a complete upper receiver chambered for 300 Blackout. It is built for shooters who want one platform that can run both 5.56x45mm NATO and 300 Blackout.

The receiver is machined from 7075-T6 aluminum with a black hard-coat anodized finish. The 16-inch barrel is 4150 chrome moly with a 1:8 twist, black nitride finish, and 1/2-28 threaded muzzle with an A2 flash hider. The rifle operates by gas impingement with a carbine-length gas system, an A3 flattop upper, and a 12-inch M-LOK handguard. It has no sights and is optic ready. Overall length is 32.5 inches and weight is 6.65 pounds.

The rifle ships with a 30-round capacity, an adjustable Magpul MOE carbine stock, and Magpul MOE grips. Manual thumb safety is standard.

• Action: Semi-Auto
• Calibers: 5.56x45mm NATO, 300 Blackout
• Barrel Length: 16 inches
• Twist: 1:8
• Capacity: 30 rounds
• Receiver Material: 7075-T6 Aluminum
• Weight: 6.65 lbs
• Overall Length: 32.5 inches