Diamondback Firearms DB15 .223 REM/5.56 NATO

The Diamondback DB15 Obsidian is built as a practical AR-platform rifle suited to range work and general utility shooting. Chambered for .223 REM/5.56 NATO, the DB15 combines a domestic manufacturing approach with components intended for consistent service and straightforward maintenance. This configuration is appropriate for target practice, training sessions, and general-purpose shooting applications.

The Obsidian model pairs a 16-inch Chrome Moly Vanadium barrel finished in black nitride with a mid-length gas system for balanced cycling characteristics. The rifle’s forged 7075 T-6 aluminum upper and lower provide a familiar AR ergonomics package, while Magpul furniture contributes to a stable shooting hold and adjustable fit. The 15-inch M-LOK anti-rotation handguard offers plenty of attachment options and includes full Picatinny sections and QD mounts.

Key Specifications

• The caliber is .223 REM/5.56 NATO.
• The barrel length is 16 inches.
• The barrel material and finish are 4150 CrMoV with Black Nitride.
• The rate of twist is 1:8 RH.
• The gas system is Mid-Length Direct Impingement.
• The handguard is a 15-inch M-LOK Anti-Rotation V4 S-Rail with full Picatinny and QD mounts.
• The stock and grip are Magpul CTR stock and Magpul MOE K2 grip.
• The rifle includes one Magpul Gen M3 PMAG, 30 rounds.
• The weight is 6.60 lbs.
• The muzzle device and thread pattern are DB Obsidian muzzle brake, 1/2×28.

For shooters seeking a familiar AR platform with Magpul furniture and a feature-rich handguard, the Diamondback DB15 Obsidian delivers straightforward capability and field-ready components. Buy the Diamondback Firearms DB15 .223 REM/5.56 NATO online today.