Looking for a reliable AR-15? This Diamondback DB15 chambered in 5.56/.223 Remington is a straightforward, well-built rifle suited for a variety of uses here in Montana. Whether you’re prepping for varmint control, hitting the range for practice, or wanting a dedicated home defense firearm, this DB15 delivers.
Diamondback DB15 Features
This rifle features a 16-inch, carbine-length barrel made from 4150 ChromeMoly steel, with a mid-length gas system and a pinned gas block. The bolt carrier group is shot-peened for increased durability, and the receivers are made from 7075-T6 aluminum. It comes equipped with a 15-inch M-LOK handguard for mounting accessories, a Magpul MOE-K2+ grip, and a Magpul ACS-L adjustable stock.
Diamondback DB15 Specifications
- Caliber: 5.56x45mm NATO / .223 Remington
- Model: DB15
- Barrel Length: 16 inches
- Barrel Twist: 1:8
- Barrel Material: 4150 ChromeMoly
- Receiver Material: 7075-T6 Aluminum
- Handguard: 15″ M-LOK
- Stock: Magpul ACS-L Adjustable
- Grip: Magpul MOE-K2+
- Sights: Magpul MBUS Pro Front & Rear
- Capacity: 30+1 rounds
- Overall Length: 34″ – 37.25″
- Finish: Black
- Manufacturer: Diamondback
This DB15 is a capable rifle right out of the box, and the M-LOK handguard provides plenty of real estate for adding optics, lights, or other accessories to customize it to your needs. It’s a solid choice for anyone looking to get into the AR platform or add another reliable rifle to their collection.
We handle all FFL transfers in-house here at Firearms Montana. Shipping within Montana is available, and we’ll ensure your firearm is transferred legally and efficiently. Please contact us with any questions regarding shipping or transfer fees.




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