Product Description

A precision-built, lightweight AR-style platform optimized for the .300 AAC Blackout cartridge. The Diamondback Carbon DB15 blends aircraft-grade materials, practical duty features, and a compact, maneuverable profile — ideal for tactical use, home defense, or range performance where controllability and reliability matter.

Manufacturer: Diamondback Firearms — Carbon Series
Model: Carbon DB15 Rifle
Type / Action: Semi-automatic AR-style centerfire rifle
Caliber: .300 AAC Blackout (300 BO)
Barrel: 16" — 1:8 rate-of-twist — threaded 5/8x24 for muzzle devices or suppressors
Rail: 15" aluminum M-LOK free-float rail for modular accessory mounting
Receiver: Forged 7075 T-6 aluminum (durable, service-grade construction)
Stock: Collapsible Magpul MOE carbine stock — overall length 32"–36"
Grip: Magpul MOE grip
Sights: None (optic ready)
Magazine: Includes (1) Gen 3 PMAG 300 BO — 30 + 1 capacity
Muzzle Device: A2 flash hider included
Safety: 2-position thumb safety
Finish: Black anodized (durable, corrosion-resistant)
Weight: 6.65 lb (shipping weight: 8.5 lb)

Performance & handling

The DB15’s 1-in-8 twist and 16" barrel length were selected to stabilize a wide range of .300 BO loads while maintaining a compact handling envelope. The light overall weight and Magpul stock give quick target acquisition and comfortable carry for extended ranges, while the free-float M-LOK rail keeps accessory mounting clean and impacts accuracy minimally.

Practical advantages

Threaded barrel (5/8x24) makes adding compensators or suppressors straightforward.
M-LOK rail provides modern modularity for lights, foregrips, and rail sections without excess bulk.
Forged 7075 receivers offer long service life and consistent fitment across components.
Ships with a reliable Gen 3 PMAG optimized for .300 BO, so you’re ready to shoot.