Diamondback DB15 5.56 NATO 16″ Midnight Bronze | DB1758K071

The Diamondback DB15 (MFG#: DB1758K071) is a purpose-built AR-style rifle configured around a 16″ chromoly barrel and a 15″ M-LOK anti-rotation handguard. It ships with Magpul furniture — an ACS-L stock and MOE-K2+ grip — and a single-stage trigger to provide consistent break for sport and range use. Pair this carbine with a Vortex Viper PST Gen II 1-6×24 for a versatile optic option that covers close- to mid-range engagements without exceeding typical enthusiast budgets.

Typical applications include competitive shooting and general-range precision/practice for AR-style platforms.

Product Specifications

• The manufacturer is Diamondback Firearms.
• The model/ATF model is DB15.
• The caliber is .223 Rem/5.56 NATO.
• The barrel measures 16 inches.
• The barrel material is chromoly steel (4150).
• The barrel finish is black nitride.
• The gas system is mid-length with a pinned gas block.
• The receiver material is forged 7075 T-6 aluminum.
• The overall weight is 6.95 lbs.
• The twist rate is 1:8.
• The action is semi-auto.
• The stock is a Magpul ACS-L in black.
• The grip is a Magpul MOE-K2+.
• The handguard is a 15″ M-LOK anti-rotation rail.
• The capacity is 30 + 1.
• The muzzle device is a muzzle brake and the thread pattern is 1/2-28 tpi.
• The finish is Midnight Bronze Cerakote.
• The UPC is 810035753150.

The DB15 is laid out for dependable, user-friendly performance with modern ergonomics and widely supported AR accessories. Its combination of a 16″ chromoly barrel, full-length M-LOK handguard, and Magpul furniture make it well suited for sport shooting and training while keeping controls familiar to seasoned AR users. For shooters who prioritize a low-maintenance finish and readily available aftermarket support, this configuration delivers a practical balance of capability and modularity.

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