Diamondback DB15 DB1915B061 | .300 Blackout | 10″ Barrel

The Diamondback DB15 (DB1915B061) is a compact AR-style carbine chambered in .300 AAC Blackout with a 10-inch heavy profile barrel and a 9-inch M-LOK handguard. It pairs a forged 7075 T-6 upper and a Diamondback carbon forged 7075 T-6 lower with a Magpul MOE grip and a padded buffer tube for usable ergonomics. For an optic under $1,000 that suits this platform, consider a low-power variable such as the Vortex Crossfire II 1-6×24 for quick target acquisition and close-to-moderate range capability.

This configuration works well for short-range hunting where the .300 BLK excels and for carbine-focused range training or suppressed shooting applications when used with an appropriate suppressor and ammunition where lawful. It ships without iron sights, allowing users to install optics or backup sights to match their intended use.

Product Specifications

• The model is Diamondback DB15 (DB1915B061).
• The caliber is .300 AAC Blackout.
• The barrel is a 10-inch Diamondback heavy 4150 CrMoV finished in black nitride.
• The barrel twist rate is 1:8.
• The gas system is a pistol-length gas system.
• The bolt carrier group is a shot-peened, magnetic particle inspected Mil-Spec 8620 carrier.
• The upper receiver is an A3 flattop forged 7075 T-6 aluminum.
• The lower receiver is a forged 7075 T-6 aluminum (Diamondback Carbon).
• The handguard is a 9-inch M-LOK rail.
• The grip is a Magpul MOE.
• The stock/assembly features a black padded buffer tube with listed stock material of aluminum and finish black.
• The magazine capacity is 28 + 1.
• The rifle ships with no sights.
• The muzzle device is an A2 flash hider (5/8 x 24).
• The UPC is 810035755611.

This DB15 layout prioritizes a compact footprint and modularity, delivering the ergonomics and accessory compatibility expected from an AR-pattern carbine while keeping the platform tuned for .300 Blackout’s short-barrel strengths. Its forged receivers and M-LOK handguard make it straightforward to mount optics, lights, and other controls to match your mission profile or range setup. The rifle is suited to users who value straightforward, reliable components and want a foundation for optics and accessory builds.

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