Diamondback Firearms DB1731B001 DB15 300 16" 31-Round Pistol

The Diamondback Firearms DB15 300 Blackout 16" pistol represents a purpose-built firearm engineered for close-quarters tactical applications where rifle caliber power meets pistol-length ergonomics. This 31-round capacity platform addresses operators and civilian shooters who demand intermediate cartridge performance in a compact, maneuverable package suitable for home defense, vehicle deployment, or specialized law enforcement scenarios. The 300 Blackout chambering delivers subsonic and supersonic ammunition compatibility, making it ideal for both suppressed and unsuppressed configurations.

Built on the proven AR-platform design, the DB15 300 features a 16-inch barrel optimized for velocity and accuracy across the full spectrum of 300 Blackout loads. The firearm's pistol configuration—with a brace-compatible design—delivers rapid target acquisition and reduced overall length compared to rifle variants, all while maintaining the modular customization inherent to the modern sporting rifle platform. At 8.75 pounds, the system balances controllability with sufficient mass for recoil management, and the 31-round magazine capacity ensures extended engagement capability without frequent reloads, critical in dynamic defensive scenarios.

Users benefit from the DB15 300's compatibility with standard AR-15 aftermarket components, enabling customization of triggers, handguards, optic mounts, and furniture to match individual mission profiles. Law enforcement agencies, armed professionals, and serious civilian shooters leverage this platform for precision intermediate-distance work where 5.56 NATO ballistics prove marginal, while 300 Blackout's superior penetration and energy retention excel. The pistol format integrates seamlessly with armor systems and vehicle-based operations, and operates reliably across both commercial and military-surplus ammunition sources.