The Diamondback DB15 Obsidian is a semi-automatic AR-style rifle chambered for .223 Rem/5.56 NATO. It is built on forged 7075-T6 aluminum receivers and features a 16-inch 1:8 RH medium 4150 CrMoV barrel with a black nitride finish and a mid-length gas system for balanced cycling. Ergonomics are provided by a Magpul CTR stock and MOE K2 grip, while a 15-inch M-LOK anti-rotation handguard accommodates accessories and optics.
Key Specifications
- The rifle is chambered for .223 Rem/5.56 NATO.
- The barrel measures 16-inch, 1:8 RH, medium 4150 CrMoV with black nitride.
- The gas system is a mid-length gas system for smoother cycling.
- The standard capacity is 30 + 1 rounds with one 30-round PMAG included.
- The unloaded weight is approximately 6.60 lbs.
- The handguard is a 15-inch M-LOK anti-rotation V4 S rail with full Picatinny and QD mounts.
- The upper and lower are forged 7075-T6 aluminum.
- The rifle ships with a Magpul CTR stock and Magpul MOE K2 grip.
- The bolt carrier is a shot-peened, MPI Mil-Spec 8620 carrier.
- The muzzle device is a DB Obsidian muzzle brake with 1/2×28 thread pattern.
Configured for range use, training, and general-purpose shooting, the DB15 Obsidian pairs durable materials with accessory-grade components for dependable, familiar operation. Its combination of forged receivers, proven gas system, and Magpul furniture provides a solid platform for optics and modular upgrades while maintaining straightforward ergonomics and handling.
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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