Diamondback DB15 Obsidian DB1784K001 | 5.56 | 16 in

The Diamondback DB15 Obsidian (DB1784K001) is a feature-rich AR-style rifle built on forged 7075-T6 receivers and finished in black hardcoat anodize. It ships configured for modern sporting use with a 16 inch nitride-finished 4150 CrMoV barrel, a 15 inch M-LOK anti-rotation handguard and Magpul furniture for reliable ergonomics. The rifle includes ambidextrous controls and a 30-round Magpul PMAG for immediate use. A suitable optic under $1,000 to pair with this rifle is the Vortex Strike Eagle 1-6×24, which provides a flexible low-power variable option for close-to-mid range work.

Typical applications for this platform include precision-focused range training and action shooting competition where a balanced, mid-length gas system and a stable ergonomics package are advantageous.

Product Specifications

• The model is DB15 Obsidian (DB1784K001).
• The caliber is listed as 5.56 NATO.
• The barrel measures 16 inches and is finished in Black Nitride on 4150 Chrome-Moly Vanadium steel with a 1:8 right-hand twist.
• The gas system is mid-length for reduced recoil impulse and timing.
• The bolt carrier group is a shot-peened Mil-Spec 8620 carrier that was magnetic particle inspected.
• The upper and lower receivers are made from 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 is an adjustable Magpul CTR and the pistol grip is a Magpul MOE K2.
• The package includes one Magpul Gen M3 PMAG, 30 rounds.
• The muzzle device is the DB Obsidian Muzzle Brake threaded 1/2×28.
• The rifle weight is listed as 6.60 lbs.
• The overall length is 33 in (collapsed) / 36.25 in (extended).
• The finish is Black Hardcoat Anodize.
• The safety and select controls are ambidextrous.
• The UPC for this product is 810035756007.

The DB15 Obsidian delivers a balance of modern features and practical ergonomics on a proven AR platform. Its mid-length gas system and nitride-treated 4150 barrel aim to reduce wear and deliver consistent function across common 5.56 loads, while the included Magpul furniture and M-LOK rail make it straightforward to configure for range use or competition. Whether you prioritize a reliable training rifle or a competition-ready starting point, this configuration provides a solid, factory-equipped baseline.

Owners and product literature note its balanced, adaptable handling and its strong feature set relative to price.

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