Diamondback Firearms DB1784K101 DB15 5.56 NATO 16" 31-Round OD Green Rifle

The Diamondback Firearms DB1784K101 DB15 5.56 NATO 16" rifle is a purpose-built modern sporting rifle engineered for law enforcement trainers, military personnel, and civilian tactical shooters who demand reliability in intermediate-distance engagements. Chambered in 5.56 NATO—the NATO-standardized equivalent to commercial .223 Remington—this platform delivers combat-proven ballistics with the ergonomic refinement of a modern direct-impingement design. The 16-inch barrel strikes a critical balance between velocity retention, maneuverability in confined spaces, and sight radius, making it equally at home in patrol duties, defensive training, or precision carbine work.

Built on the proven AR-15 platform, the DB15 features a 16-inch barrel that generates approximately 2,900 feet per second with standard 55-grain ammunition—adequate velocity for barrier penetration and terminal performance at typical engagement distances. The rifle ships with a 31-round magazine capacity, extending engagement duration and reducing reload frequency in high-stress scenarios. Finished in OD Green, a color favored by professional operators for low-visibility fieldwork, the receiver and furniture resist corrosion and reflect less ambient light than black anodize. At 8.4 pounds unloaded, the DB1784K101 maintains reasonable portability without sacrificing sight plane stability or control authority during rapid fire sequences.

Law enforcement agencies, defensive shooting instructors, and trained civilian operators will find this carbine compatible with the extensive ecosystem of AR-pattern optics, rails, and aftermarket components available through standard Picatinny mounts. The direct-impingement system requires routine field cleaning but delivers the inherent reliability expected from military-specification platforms. New shooters and experienced tactical professionals alike benefit from the DB15's ergonomic controls, predictable recoil impulse, and ease of maintenance. For those seeking a versatile, OD Green 5.56 NATO rifle with proven design fundamentals and practical capacity, the Diamondback Firearms DB1784K101 offers solid value without unnecessary complications.