Brand	Diamondback Firearms
SKU	—
UPC	—
Action	Semi-Automatic
Finish	Black Hard Coat Anodized
Sights	Standard Sights
Capacity	30+1
Grip Safety	No
Optic Ready	Yes
Barrel Length	16 inches
Manual Safety	Yes
Trigger Safety	No
Caliber / Gauge	5.56 NATO, .300 Blackout
Threaded Barrel	Yes
Ambidextrous Safety	No
Condition	New

Diamondback Firearms

Diamondback Firearms DB15 Combo 5.56 NATO .300 Blackout Black Hard Coat Anodized Rifle

Name: Diamondback Firearms DB15 Combo 5.56 NATO .300 Blackout Black Hard Coat Anodized Rifle
Brand: Diamondback Firearms
SKU: 148126
Price: 1052.24 USD
Availability: InStock

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In Stock

$1052.24

Firearms ship to the FFL dealer you name at checkout. Price and stock are re-checked live when you order.

The Diamondback Firearms DB15 Combo is a semi-automatic AR-pattern rifle package designed around interchangeable 5.56 NATO and .300 Blackout configurations. Both barrels measure 16 inches, while the black hard-coat anodized receiver set and adjustable Magpul MOE stock provide a durable, familiar platform for range use, training, and recreational shooting. A flat-top receiver with an optic mounting rail supports the addition of a compatible red dot sight or riflescope.

Key features

Interchangeable 5.56 NATO and .300 Blackout configurations provide versatile ammunition options
Two 16-inch barrels support balanced handling and practical range performance
Semi-automatic operation with 30+1 capacity supports efficient target practice
Black hard-coat anodized receiver finish helps resist wear from regular use
Adjustable Magpul MOE stock allows the length of pull to be tailored to the shooter
Flat-top optic mounting rail makes the rifle ready for a compatible sighting optic

The DB15 Combo delivers a flexible AR-pattern rifle platform with two popular chamberings in one package.