The Diamondback DB15 Obsidian is a semi-automatic AR-platform rifle chambered in 5.56 NATO built for versatility on the range and in training applications. It uses a 16-inch 4150 Chrome-Moly Vanadium barrel with a black nitride finish and a 1:8 twist rate. The rifle features a mid-length direct impingement gas system and forged 7075 T-6 aluminum receiver set finished in Jungle Green Cerakote. Standard equipment includes a 15-inch M-LOK anti-rotation handguard, Magpul CTR stock, Magpul MOE K2 grip, and a Magpul Gen M3 30-round PMAG.
Key Specifications
- Chambered in 5.56 NATO.
- The barrel measures 16 inches and is made from 4150 Chrome-Moly Vanadium with a black nitride finish.
- The rifling twist rate is 1:8.
- Equipped with a mid-length direct impingement gas system.
- The handguard is a 15-inch M-LOK anti-rotation V4 S-Rail with full Picatinny sections and QD mounts.
- Includes a Magpul Gen M3 30-round PMAG magazine.
- The stock is a Magpul CTR carbine and the grip is a Magpul MOE K2.
- The muzzle device is a DB Obsidian muzzle brake (1/2 x 28).
- The receiver set is forged 7075 T-6 aluminum finished in Jungle Green Cerakote.
- Overall weight is approximately 6.6 lb with overall length 33 in / 36.25 in (collapsed/extended).
The DB15 Obsidian combines durable materials and common, service-proven components to deliver a capable, feature-rich AR platform. Its 16″ black nitride barrel, extended M-LOK rail, and Magpul furniture make it suitable for precision-oriented range work and general-purpose training. The Jungle Green Cerakote finish and integrated accessory provisions offer a refined, tactical appearance while preserving practical functionality.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.
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