Diamondback Firearms DB175AK221 DB15 5.56 NATO 16" 31-Round FDE Carbine

The Diamondback Firearms DB175AK221 DB15 5.56 NATO 16" 31-Round FDE Carbine is a modern direct-impingement rifle designed for patrol, home defense, and tactical training environments where reliability and modularity are essential. This firearm is suitable for law enforcement agencies, military personnel transitioning to civilian use, and serious shooters who require a dependable rifle built on proven ergonomics and AR-pattern standardization.

The carbine features a 16-inch barrel optimized for 5.56 NATO/.223 Remington ammunition, balancing muzzle velocity retention with close-quarters maneuverability—critical in tactical operations. The FDE (Flat Dark Earth) finish provides a professional appearance while offering corrosion resistance, making it suitable for various environments. With an unloaded weight of 8.2 lbs, this rifle promotes reduced shooter fatigue during extended use.

At an overall length of 39.2 inches, the DB15 fits standard vehicle storage and is effective in confined-space operations. It maintains ergonomic controls and rail systems characteristic of modern AR-15 architecture, allowing seamless integration of optics, lights, and accessories via Picatinny standards. This carbine is ideal for shooters seeking a duty-grade platform with aftermarket compatibility across numerous suppliers.