Diamondback Firearms DB175AB002 DB15 300 16" 31-Round Threaded Barrel Rifle

The Diamondback Firearms DB175AB002 DB15 300 AAC Blackout rifle represents a purpose-built platform for shooters requiring intermediate cartridge performance in a compact, modular design. Purpose-designed for law enforcement applications, tactical training, and civilian home defense, this 16-inch rifle delivers the ballistic efficiency of the .300 AAC Blackout cartridge in a form factor that excels in close-quarters environments and controlled engagement distances. The threaded barrel configuration and 31-round capacity establish this rifle as a modern, mission-ready platform for operators who demand reliability and firepower density without excessive length or weight.

Built on the proven AR-15 platform architecture, the DB15 300 maintains the ergonomic and mechanical advantages of the direct impingement system while chambering the subsonic-capable .300 AAC Blackout cartridge, which delivers 7.62×35mm performance at significantly reduced muzzle velocities when loaded with appropriate ammunition. The 16-inch threaded barrel allows immediate suppressor integration—critical for operators in noise-restricted environments—and the rifle's 8.4-pound weight distribution balances firepower with controllability in dynamic shooting scenarios. The 31-round magazine capacity provides extended engagement capability without requiring immediate reloads, a tactical advantage in multi-threat situations where speed and sustained fire volume matter operationally.

Law enforcement tactical teams, military personnel transitioning to civilian ownership, and serious home defenders benefit most from this rifle's intermediate cartridge performance and compact footprint. The .300 AAC Blackout excels in suppressed applications and barrier-blind scenarios where 5.56 NATO ballistics prove excessive; this caliber maintains energy and penetration through common structural materials while reducing over-penetration concerns in residential environments. The Diamondback DB175AB002 accepts standard AR-15 furniture, optics mounts, and accessories, ensuring compatibility with existing tactical loadouts and enabling rapid customization for specific mission requirements or personal preferences.