DIAMONDBACK FIREARMS DB15 300BLK DUO 16″ B5 MULTI

300 AAC Blackout DIAMONDBACK FIREARMS DB15 Duo 16″ B5 Multi

The 300 AAC Blackout DIAMONDBACK FIREARMS DB15 Duo is built for compact, modern use cases like home defense and everyday carry-style preparedness, where reliable semi-automatic performance matters. Chambered in 300 Blackout, this 16-inch AR-pattern rifle uses a 1-in-8 twist rate to support a broad range of common bullet weights. It ships as a complete firearm configured with a B5-style multi-purpose setup and a Gen 2 PMAG magazine for ready readiness at the bench.

Product Overview

This Diamondback Firearms DB15 model uses a semi-automatic action for lawful, responsible firearm use. As an ATF-listed rifle in .300 AAC Blackout, it is designed for compatible ammunition and safe operation according to manufacturer guidance and applicable local laws. The listed configuration includes no sights, allowing you to mount optics or iron sights you select based on your intended role.

Key Specifications

• UPC: 810035755963.
• Manufacturer: Diamondback Firearms.
• Manufacturer Part Number: DB1780B281.
• Action: Semi-Auto.
• ATF Type: Rifle.
• Barrel Length: 16 inches.
• Caliber/Gauge: .300 AAC Blackout.
• Capacity: 30 + 1.
• Model: DB15.
• Number of Magazines: 1 Gen 2 PMAG.
• Product Type: Rifle.
• Rate of Twist: 1-in-8.
• Sights: No Sights.

With a 16-inch .300 Blackout configuration, semi-automatic operation, and a 30+1 capacity magazine setup, this Diamondback DB15 Duo gives you a versatile AR platform foundation for optics-driven accuracy and practical training. The 1-in-8 twist broadens compatibility with typical 300 BLK bullet profiles, making it a strong choice for range use and defensive preparedness where dependable function and quick configuration matter.

Frequently Asked Questions (FAQs)

1) What caliber is the Diamondback DB15 Duo 16″?

It is chambered in .300 AAC Blackout.

2) What is the barrel length and twist rate?

The barrel length is 16 inches and the rate of twist is 1-in-8.

3) Does this rifle include sights?

No—this configuration is listed with no sights, so you can install the optics or iron sights you prefer.

4) What magazine capacity does it use?

It is listed with 30 + 1 capacity and includes 1 Gen 2 PMAG.

5) What type of action does it have?

It uses a semi-automatic action.

6) Is the firearm labeled as a rifle by ATF?

Yes, the ATF type is listed as a RIFLE.

7) What ammunition should I use?

You should use only SAAMI-spec .300 AAC Blackout ammunition that matches the firearm’s chambering, and always follow safe handling and local laws.

8) What should I consider before purchasing for home defense or range use?

Confirm local regulations, plan for safe transport/storage, and ensure you have appropriate compatible optics/controls since this model is listed with no sights.