Diamondback Firearms DB1758K071 DB15 5.56 NATO 16" 31-Round Carbine

The Diamondback Firearms DB15 5.56 NATO 16" carbine is a modern intermediate rifle engineered for law enforcement, military, and civilian tactical operators who demand reliability in dynamic environments. Built on the proven AR-15 platform, this 31-round carbine delivers the versatility and modularity that professionals expect, whether deployed for patrol operations, training exercises, or home defense. The 16-inch barrel strikes the critical balance between velocity, maneuverability, and accuracy—ideal for confined spaces and rapid target engagement where full-length rifle configurations become unwieldy.

The DB15 platform features a mid-length gas system that optimizes reliability and controllability across standard 5.56 NATO ammunition without excessive recoil impulse. The 16-inch barrel length generates sufficient velocity for effective terminal performance while maintaining compact overall dimensions of 48 inches, making the carbine practical for vehicle operations and tactical entries. At 12.8 pounds loaded, the weapon remains shoulderable for extended operations while the 31-round magazine capacity provides sustained suppressive fire and flexibility in high-stress scenarios without constant reloads. The design integrates modern ergonomic controls and accepts standard AR-15 aftermarket components, enabling rapid customization for optics, grips, and accessories tailored to specific mission requirements.

Law enforcement SWAT teams, military personnel transitioning to civilian ownership, and serious defensive shooters benefit most from the Diamondback DB15's combination of combat-proven reliability and configurability. The carbine functions reliably with standard 5.56 NATO ammunition across all environmental conditions and accepts industry-standard Picatinny rail-mounted optics, lights, and tactical accessories. Its modular construction allows operators to adjust gas settings, swap handguards, and reconfigure the platform based on mission profile—from close-quarters engagement to precision work—without requiring specialized tools or gunsmith services.