Diamondback Firearms Db15 Obsdn 5.56 16" 30-Round Carbine

The Diamondback Firearms DB15 Obsidian 5.56 16" semi-automatic carbine is a proven platform for law enforcement, military training, and civilian tactical use. Built on the AR-15 foundation, this rifle delivers the reliability and accuracy expected in demanding operational environments. The 16-inch barrel strikes a critical balance between velocity, handling characteristics, and practical engagement ranges—making it equally effective for home defense, patrol carbine work, or precision shooting discipline.

The DB15 Obsidian features a direct-impingement operating system and accepts standard 5.56 NATO or .223 Remington ammunition with the same reliability you expect from mature AR platform design. The 30-round magazine capacity aligns with modern tactical doctrine and provides sufficient rounds for training, duty, or sport shooting without frequent reloads. A 16-inch barrel delivers approximately 2,800 feet per second with 5.56 NATO loadings, optimizing the round's ballistic performance while maintaining a compact profile ideal for vehicle use, close-quarters work, or manual of arms in confined spaces.

Law enforcement agencies, military support units, and serious civilian shooters benefit from the DB15's modular design and broad compatibility with standard AR-15 accessories and optics. The Obsidian variant comes ready to accept industry-standard rail systems, red dots, magnified optics, and tactical lighting—critical for mission-ready configuration. At approximately 6 pounds, the carbine remains maneuverable for extended operations while maintaining sufficient mass for consistent recoil management. This rifle is an excellent choice for shooters seeking a reliable, field-proven 5.56 platform without premium pricing, suitable for professional training, defensive readiness, or competitive carbine events.