Diamondback DB15 DB1731B001 | .300 Blackout | 16″ Barrel

The Diamondback DB15BG (MFG# DB1731B001) is a .300 AAC Blackout AR-pattern rifle built around a 16″ heavy 4150 CrMoV chromoly barrel with a black nitride finish. It ships with a 15″ M-LOK V-rail handguard, Magpul CTR adjustable stock, Magpul MOE-K2 grip, and a single 30-round Gen 3 PMAG. The rifle uses a pistol-length gas system and a shot-peened Mil-Spec 8620 bolt carrier group for consistent cycling.

For optics under $1,000, a low-power variable such as the Vortex Strike Eagle 1-6×24 pairs well with this carbine-length .300 BLK platform for close-to-medium range work and practical shooting. Typical applications for this rifle include short- to medium-range hunting with supersonic or subsonic loads and carbine/practical shooting or range training.

Product Specifications

• The caliber is .300 AAC Blackout.
• The action is Semi-Auto.
• The barrel measures 16 inches and is 4150 CrMoV chromoly steel with a black nitride finish.
• The rate of twist is 1:8″ right-hand.
• The gas system is a pistol-length gas system.
• The bolt carrier group is a Mil-Spec 8620 shot-peened unit.
• The receivers are forged 7075-T6 aluminum with the Diamondback Black Gold lower.
• The handguard is a 15-inch M-LOK V-rail with anti-slip texture pads.
• The stock and grip are a Magpul CTR adjustable stock and Magpul MOE-K2 grip.
• The rifle’s capacity is 30 + 1.
• Included with the rifle is one 30-round Gen 3 PMAG.
• The muzzle is threaded 5/8-24 tpi and ships with a Diamondback DBSB-IV flash hider.
• The unloaded weight is approximately 6.8 lbs.
• The overall length ranges from 32.75 to 36 inches depending on stock position.
• The rifle is optic ready and ships without iron sights installed.
• The UPC is 810035754140.

This DB15BG configuration delivers a compact, versatile .300 Blackout package with a heavy-profile, nitride-finished barrel and a full suite of Magpul furniture. The included 30-round PMAG and the 15″ M-LOK handguard make this rifle ready for accessory mounting and practical field use; its pistol-length gas system and robust BCG support reliable cycling across common .300 BLK loads. Built on forged 7075-T6 receivers and finished in Diamondback’s Black Gold treatment, the platform balances durability and utility for shooters who want a capable AR-pattern rifle in .300 Blackout.

Related Videos: