Diamondback DB15 Obsidian 5.56 NATO 11.5in FDE

The DIAMONDBACK FIREARMS DB15 Obsidian is built as an AR-style semi-automatic platform chambered for 5.56 NATO, intended for range use, training, and general-purpose shooting. Its compact 11.5-inch barrel and SBA5 brace offer a compact handling profile suitable for controlled environments and target work.

The Obsidian is finished in Flat Dark Earth Cerakote and pairs a chrome-moly-vanadium 11.50-inch barrel with a black nitride treatment. Ergonomic elements include a Magpul MOE K2 grip and an 11-inch M-LOK anti-rotation rail with full Picatinny and QD mounts, providing modular accessory mounting and a familiar AR-style interface.

Key Specifications

• The caliber is 5.56 NATO.
• The barrel length is 11.50 inches, providing a compact balance between maneuverability and ballistic performance.
• The barrel material is Chrome Moly Vanadium.
• The barrel finish is Black Nitride.
• The action is Semi-Auto.
• The capacity is 30 + 1.
• The rate of twist is 1:8" right-hand.
• The handguard is an 11 inch M-LOK Anti-Rotation V4 S-Rail with full Picatinny and QD mounts.
• The stock/brace is an SB Tactical SBA5 brace.
• The unloaded weight is 6.25 lbs.

This listing reflects the supplied manufacturer specifications and included components such as a Magpul Gen M3 30-round PMAG and the DB Obsidian muzzle device threaded 1/2"-28. Review component and compliance details carefully before purchase.

Buy the DIAMONDBACK FIREARMS DB15 Obsidian 5.56 NATO online today for a compact AR-style 5.56 platform with M-LOK modularity and SBA5 brace compatibility.

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