The Diamondback DB15 in .300 AAC Blackout (brand part no. DB1984B061) is a semi-automatic AR-pattern pistol, not a rifle, built around a 10.5-inch 5/8×24-threaded barrel with an SBA5 stabilizing brace, finished in FDE. Diamondback Firearms feeds this pistol from an included 30-round PMAG and equips it with a selector-switch safety. Among AR-platform firearms in the semi-auto rifles category, this DB15 favors shooters who want compact, close-quarters .300 Blackout handling.

Key Specifications

• Chambered in .300 AAC Blackout.
• Configured as an AR-pattern pistol, not a rifle.
• Operates as a semi-automatic action.
• Features a 10.5-inch barrel.
• Muzzle is threaded 5/8×24.
• Equipped with an SBA5 stabilizing brace.
• Feeds from an included 30-round PMAG.
• Ships with no fixed sights, ready for an optic.
• Uses a selector-switch safety.
• Finished in FDE.

Frequently Asked Questions

Is this a rifle or a pistol? This is an AR-pattern pistol with an SBA5 brace, not a rifle.

Is the barrel threaded? Yes, threaded 5/8×24 for a muzzle device.

Buy the Diamondback DB15 .300 Blackout Pistol FDE

Compact, close-quarters .300 Blackout handling is exactly what this DB15 pistol delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.