The Diamondback DB15 Carbon .300 Blackout pistol (Diamondback part no. DB1915B001) is a 10-inch AR pistol in black hard-coat anodize with a 9-inch M-LOK handguard. It runs a heavy-profile 1:8 twist barrel with a pistol-length direct impingement gas system, a Magpul MOE grip and a 5/8×24 A2 flash hider. A Magpul Gen M3 PMAG with a 30-round capacity is included, and the buffer tube wears a foam pad instead of a stock. At 29 inches long and 5.4 pounds it is a compact .300 Blackout platform for range work and field use.

Key Specifications

• The chambering is .300 AAC Blackout, a cartridge designed for short-barreled AR platforms.
• The barrel is 10 inches with a 1:8 right-hand twist, heavy profile, 4150 CrMoV steel with a black nitride finish.
• The gas system is pistol-length direct impingement, matched to the short barrel.
• The handguard is a 9-inch M-LOK rail for lights, grips and accessories.
• The upper is a forged 7075-T6 aluminum A3 flat-top, leaving the top rail open for an optic.
• The lower is forged 7075-T6 aluminum, Diamondback’s Carbon lower.
• A Magpul Gen M3 PMAG with a 30-round capacity is included.
• The muzzle device is an A2 flash hider threaded 5/8×24.
• Weight is 5.4 pounds, a compact size for an AR pistol.

Frequently Asked Questions

What magazine comes with this AR pistol? It comes with a Magpul Gen M3 PMAG that holds 30 rounds.

What is the muzzle thread? The A2 flash hider threads on at 5/8×24.

Does it have sights? No. Diamondback lists the sights as none; the A3 flat-top upper is ready for the optic or sights you choose.

Buy the Diamondback DB15 Carbon .300 Blackout Pistol

A 10-inch barrel and a 9-inch M-LOK handguard keep this .300 Blackout pistol short without giving up accessory space. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and see more semi-auto handguns while you are here.