Diamondback DB15 Obsidian .300 Blackout Pistol, OD Green

About this product

The Diamondback DB15 Obsidian is an AR-style pistol configured for the .300 AAC Blackout cartridge, built to offer compact handling and familiar AR ergonomics. It ships in Olive Drab Green with an SB Tactical SBA5 pistol brace and a removable 30-round Magpul PMAG. The platform uses forged 7075 T-6 aluminum receivers and a 9 in M-LOK anti-rotation handguard with full Picatinny sections and QD mounts. Other factory features include a shot-peened, magnetic-particle inspected Mil-Spec 8620 carrier and an Obsidian muzzle brake with 5/8×24 threads.

Key Specifications

• Chambered in .300 AAC Blackout for compatibility with subsonic and supersonic loads.
• Operates as a Semi-Auto action for standard AR-style manual of arms.
• Weighs approximately 6.25 lbs as configured.
• Magazine capacity is 30 + 1 with the included magazine.
• Built on forged 7075 T-6 aluminum upper and lower receivers.
• Equipped with a 9 in M-LOK Anti-Rotation V4 S-Rail featuring full Picatinny sections and QD mounts.
• Includes an SB Tactical SBA5 brace in the factory configuration.
• Includes one 30-round Magpul PMAG magazine.
• Features an Obsidian muzzle brake with 5/8×24 thread pattern.
• Bolt carrier group is a shot-peened, magnetic-particle inspected Mil-Spec 8620 carrier.

Designed for shooters who prioritize compact handling and straightforward performance, the DB15 Obsidian combines AR-style familiarity with a purpose-built configuration for .300 AAC Blackout. Its forged receiver set, robust bolt carrier treatment, full-featured M-LOK rail and factory brace make it a practical choice for users seeking a compact AR platform with readily available accessory options.

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