Diamondback DB15 Combo FDE 5.56 / .300 AAC Blackout 16″ Barrel 30-Rounds

Diamondback DB15 Combo Features

Built around a lightweight yet durable Diamondback carbon lower and a 7075-T6 aluminum upper, the DB15 Combo is finished in a striking Flat Dark Earth (FDE) Cerakote, providing both rugged protection and visual appeal. The 16-inch chromoly steel barrel is treated with a black nitride finish for enhanced longevity and resistance to wear, while the 1:8 twist rate allows for consistent performance across a range of bullet weights in both calibers.

Outfitted with a 12-inch M-LOK handguard, this rifle is ready for mounting a wide range of AR-15 accessories such as lights, lasers, and foregrips. The optics-ready upper with a Picatinny rail ensures flexibility for sighting options. Handling is enhanced with a Magpul MOE adjustable carbine stock and Magpul grip, offering a customizable fit and ergonomic control. The A2 flash hider and manual thumb safety round out a feature-rich platform designed for performance and safety. With its direct impingement system, the DB15 Combo ensures smooth and reliable cycling for every round.

Diamondback DB15 Combo Specifications

• Manufacturer: Diamondback
• Model: DB15 Combo
• Series: Combo
• Caliber: 5.56x45mm NATO / .300 AAC Blackout
• Type: Semi-Auto Rifle
• Action: Direct Impingement
• Capacity: 30 + 1
• Barrel Length: 16″
• Barrel Material: Chromoly Steel
• Barrel Finish: Black Nitride
• Twist Rate: 1:8″
• Thread Pattern: 1/2″-28 TPI
• Muzzle Device: A2 Flash Hider
• Receiver Material: 7075-T6 Aluminum Upper / Diamondback Carbon Lower
• Receiver Finish: Flat Dark Earth Cerakote
• Handguard: 12″ Free-Float M-LOK
• Grip: Black Magpul
• Stock: Adjustable Magpul Carbine
• Stock Material: Synthetic
• Stock Finish: Black
• Sights: Optic Ready
• Safety: Manual Thumb
• Magazine Type: AR-15 Standard
• Magazine Included: 1 (30-Round)
• Overall Length: 32.50″ – 35.75″
• Weight: 6.65 lbs
• Gun Platform: AR-Style
• Hand: Right