The Diamondback DB15 Obsidian is a semi-automatic modern sporting rifle built on forged 7075-T6 aluminum receivers and finished in black hardcoat anodize. It is chambered for 5.56 NATO and fitted with a 16″ medium profile 4150 chrome-moly-vanadium barrel finished in black nitride and a mid-length gas system. The rifle ships with a 15″ M-LOK anti-rotation handguard, ambidextrous controls and a 30-round Magpul Gen M3 PMAG.
Key Specifications
- The caliber is 5.56 NATO (.223 REM/5.56 NATO).
- The barrel is 16 inches, 1:8 RH, medium 4150 CrMoV, black nitride.
- The gas system is mid-length.
- The bolt carrier group is shot-peened, magnetic particle inspected Mil-Spec 8620.
- The upper and lower receivers are forged 7075-T6 aluminum.
- The handguard is a 15-inch M-LOK anti-rotation V4 S-Rail with full Picatinny and QD mounts.
- The stock and grip are a Magpul CTR stock and a Magpul MOE-K2 grip.
- The included magazine is a Magpul Gen M3 PMAG, 30 rounds (capacity listed as 30 + 1).
- The muzzle device is an Obsidian muzzle brake, 1/2 x 28 thread.
- The unloaded weight is 6.60 lbs and overall length is 33 in / 36.25 in (collapsed/extended).
Built from military-proven components and quality-machined parts, the DB15 Obsidian offers a balanced combination of durability and ergonomic controls for range use, recreational shooting, and platform customization. Its mid-length gas system and nitride-finished barrel contribute to smooth operation and long-term serviceability, while the Magpul furniture and M-LOK handguard provide a familiar, modular interface for accessories and optics.
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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