Diamondback DB15 Obsidian | 5.56 NATO | 16″ | DB1784K101

The Diamondback DB15 Obsidian is a feature-rich 5.56 NATO semi-automatic rifle built around forged 7075-T6 aluminum receivers and a 15″ M-LOK anti-rotation rail. It comes finished in OD Green Cerakote and is fitted with Magpul furniture and ambidextrous controls for ergonomic handling. The rifle’s mid-length gas system and shot-peened Mil-Spec 8620 bolt carrier are intended to deliver reliable cycling in typical field and range use.

For optics, a compact low-power variable optic such as the Vortex Viper PST Gen II 1-6×24 would pair well under $1,000, providing a versatile sight picture for both close and mid-range use. Typical applications include recreational range training and carbine competition where a balanced, adaptable platform is preferred.

Product Specifications

• The caliber is 5.56x45mm NATO.
• The barrel measures 16 inches with a 1:8 RH twist rate.
• The rifle uses a mid-length gas system for its operating cycle.
• The bolt carrier group is a shot-peened Mil-Spec 8620 carrier.
• The upper and lower receivers are forged 7075 T-6 aluminum.
• The handguard is a 15-inch M-LOK Anti-Rotation V4 S-Rail with full Picatinny sections and integrated QD mounts.
• The charging handle is a Breek Arms Warhammer Mod2 ambidextrous unit.
• The bolt catch is a Battle Arms Development enhanced bolt catch and the safety is a Battle Arms Development ambidextrous selector.
• The grip is a Magpul MOE K2 and the stock is a Magpul CTR.
• The rifle ships with one Magpul Gen M3 PMAG 30-round magazine (30 + 1 capacity).
• The muzzle device is the DB Obsidian Muzzle Brake (1/2×28).
• The action type is Semi-Auto.
• The finish is OD Green Cerakote.
• The weight is approximately 6.60 lbs and overall length is 33 in / 36.25 in (collapsed / extended).
• The UPC is 810035756021.

The DB15 Obsidian balances modern ergonomics and upgraded controls in a familiar AR-style platform. Its 15″ M-LOK rail and ambidextrous hardware make it adaptable for a range of setups, while the Magpul furniture keeps the interface familiar and functional. Whether you plan to log range time or run courses in carbine competition, this rifle provides a capable baseline with accessory-forward features.

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