The Diamondback Firearms DB15 is a modern sporting rifle chambered in 5.56 NATO and built around a flat-top, optic-ready receiver. Its 16-inch threaded barrel balances maneuverability with practical performance, while the adjustable Magpul ACS-L stock and MOE-K2+ grip provide a secure, comfortable shooting position. The rifle features a single-stage trigger, manual safety, and 30+1 capacity for range use, training, and practical rifle applications.

Key features

• 5.56 NATO chambering also accepts .223 Remington ammunition
• 16-inch threaded barrel with 1/2x28 muzzle threads
• Optic-ready flat-top receiver for flexible sighting system installation
• Adjustable Magpul ACS-L stock supports a customized length of pull
• Magpul MOE-K2+ grip improves control and handling comfort
• Single-stage trigger provides a consistent trigger interface

The Diamondback DB15 combines a versatile 5.56 NATO platform with practical Magpul furniture and an optic-ready configuration.