Diamondback DB15 | 5.56 NATO | 16″ KAC CHF | DB1889K001

The Diamondback DB15 is a purpose-built AR-pattern rifle assembled in the USA and finished around a Knights Armament cold hammer-forged barrel blank with a chrome-lined bore and a 1:7 rate of twist. It features a 15″ anti-rotation M-LOK handguard, Magpul MBUS sights, and a Magpul CTR collapsible stock for a balanced, familiar handling profile. For an optic that complements the DB15 without exceeding $1,000, consider the Vortex Strike Eagle 1-6×24; it provides a versatile field-of-view for both close and mid-range work and pairs well with the rifle’s 16″ barrel characteristics.

Appropriate applications for this rifle include range training and practical competition shooting, where the DB15’s durable barrel and reliable mid-length gas system offer consistent performance.

Product Specifications

• The UPC is 810035754478.
• The manufacturer is DIAMONDBACK FIREARMS, LLC.
• The model is DB15.
• The caliber is .223 REM/5.56 NATO.
• The barrel measures 16″ and begins as a Knights Armament cold hammer-forged barrel blank with a chrome-lined interior.
• The twist rate is 1-in-7.
• The gas system is Mid-Length.
• The handguard is a 15″ M-LOK anti-rotation S-rail.
• The receiver is forged 7075 T-6 aluminum.
• The stock is a Magpul CTR collapsible stock.
• The included magazine is a 1 × 30‑round Magpul PMAG.
• The capacity is 30.
• The action is Semi-Auto.
• The overall length is 34″ to 37.25″.
• The finish is Black / Matte.

The DB15 is built to deliver a predictable, serviceable AR experience using premium input components. Its Knight’s Armament-derived barrel blank and Magpul furniture provide a blend of longevity and ergonomic familiarity, making the platform straightforward to run and maintain. The combination of a mid-length gas system and a 15″ M-LOK rail supports stable handling and accessory flexibility for competitive or serious range use.

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