Diamondback DB15 Obsidian .300 AAC Blackout Pistol, FDE

About this product

The Diamondback DB15 Obsidian is an AR-style pistol chambered in .300 AAC Blackout finished in Flat Dark Earth and fitted with an SB Tactical SBA5 pistol brace. It includes a 9-inch M-LOK anti-rotation V4 S-rail with full Picatinny sections and QD mounts, plus a DB Obsidian muzzle brake threaded to 5/8×24. With a listed weight of 6.25 lbs and a supplied 30‑round Magpul PMAG, the platform emphasizes compact handling and modular accessory mounting for close-quarters and range use.

Key Specifications

• The caliber is .300 AAC Blackout.
• The capacity is 30 + 1.
• Includes 1 x 30‑round Magpul PMAG.
• Features a 9-inch M-LOK Anti-Rotation V4 S-Rail with full Picatinny and QD mounts.
• Equipped with a DB Obsidian muzzle brake (5/8×24).
• The brace is a SB Tactical SBA5.
• The receiver is forged 7075 T-6 aluminum.
• The action is semi-automatic.
• Overall length is reported as 26.75–29.50 inches.
• The listed weight is 6.25 lbs.

Configured as a compact, configurable AR-style pistol, the DB15 Obsidian pairs practical ergonomics and common accessory interfaces for owners who value straightforward performance and modularity. Its combination of a full-length rail section, threaded muzzle device, and included 30‑round magazine makes it a practical option for range-focused builds and compact setups where control and accessory options matter.

Related Videos: