The Diamondback DB15 Rifle in .300 AAC Blackout is a black-anodized Carbon Series AR-15 with a 16-inch barrel (brand part no. DB1718B002). Diamondback Firearms gives it a heavy 1:8 twist barrel with a pistol-length gas system and a 15-inch M-LOK AV-Rail handguard with anti-slip texture pads. A Magpul MOE-PR stock and MOE grip finish the rifle. It suits shooters who want a straightforward .300 Blackout rifle.

Key Specifications

• The caliber is .300 AAC Blackout, a versatile cartridge for subsonic and supersonic loads.
• The barrel is 16 inches with a 1:8 right-hand twist, which stabilizes a range of bullet weights.
• The barrel is a heavy-profile 4150 CrMoV with a black nitride finish, which resists wear.
• The gas system is pistol length, direct impingement, which suits the cartridge.
• The handguard is a 15-inch M-LOK AV-Rail with anti-slip texture pads, a sure grip for the support hand.
• The muzzle carries an A2 flash hider threaded 5/8×24, a common thread for muzzle devices.
• The stock is a Magpul MOE-PR, which is sturdy and comfortable.
• It ships with a 30-round Magpul Gen M3 PMAG, a reliable polymer magazine.
• The finish is black hardcoat anodize over forged 7075-T6 aluminum, a durable low-glare coating.
• The rifle weighs about 6.7 pounds and measures 32.75 to 36 inches overall.

Frequently Asked Questions

Is this rifle chambered in 5.56 NATO? No. It is chambered in .300 AAC Blackout, so use only .300 Blackout ammunition and magazines made for it.

Does it come with sights? The maker lists no sights, so you add the optic you want.

What muzzle device does it have? An A2 flash hider threaded 5/8×24 is fitted.

Buy the Diamondback DB15 Rifle, .300 AAC Blackout, 16-Inch, Black, M-LOK, 30-Round

This black .300 Blackout keeps the Carbon Series value formula, with Magpul furniture and a long handguard at an affordable price. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more AR rifles.