The Diamondback DB15 is a semi-auto AR pistol chambered in .338 ARC, built on American-made engineering with a 10.5″ barrel finished in Black Nitride and constructed from Chrome Moly Vanadium steel. The barrel features a 1:5 twist rate optimized for .338 ARC stabilization and threads 5/8″x24 for suppressors and other muzzle devices.
The upper receiver includes a 9″ V3 M-LOK anti-rotation rail and Picatinny rail mounted to an aluminum receiver. Control surfaces consist of a Radian Raptor-LT ambi charging handle, Radian Talon ambi safety, extended bolt catch, and Radian takedown pins. The pistol ships with an SB Tactical SBA5 brace, Magpul MOE grip, and a Superlative Arms adjustable gas block.
Magazine compatibility extends to 6.5 Grendel, 400 Legend, and 7.62x39mm magazines without requiring proprietary parts. The package includes one 26-round metal magazine. Built in the USA and backed by Diamondback’s reputation for quality, the DB15 is engineered for precision and built for real-world performance.






