Diamondback DB15 .223/5.56 16″ M-LOK Semi-Auto Rifle

About this product

The Diamondback Firearms DB15 is an American-made AR-platform rifle chambered in .223 Rem / 5.56 NATO. It pairs a 16″ barrel with an M-LOK handguard and ships with a 30-capacity magazine for general-purpose use. The rifle uses a military-proven gas-impingement system in a semi-auto action and features polymer stock and grip in a smoked bronze finish. Components are machined in Diamondback’s CNC facility and the build emphasizes straightforward function and serviceability.

Key Specifications

• The action is Semi-Auto.
• The barrel length is 16″.
• The caliber is .223 REM / 5.56 NATO.
• The magazine capacity is 30.
• The included accessories are 1 Magazine.
• The finish/color is Smoked Bronze.
• The handguard attachment system is M-LOK.
• The grip material is Polymer.
• The stock type is Polymer.
• The model is DB15.

Practical and unpretentious, the DB15 delivers a familiar AR experience with modular M-LOK capability and user-friendly ergonomics. Its combination of a 16″ barrel, common chambering, and polymer furniture makes it a sensible option for routine range work, training, and general-purpose use where predictable performance and straightforward maintenance are priorities.

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