The Diamondback DB15 in .300 AAC Blackout (MPN DB1731B001) pairs a 16-inch black nitride barrel with a V-style rail handguard, giving shooters a subsonic-capable AR-15 optimized for suppressed and short-range use. Diamondback Firearms cuts a 1:8-inch rate of twist, threads the muzzle 5/8-24 for a suppressor or muzzle device, and uses a manual thumb safety. The rifle feeds from an included 30-round PMag. Among modern sporting rifles in the AR rifles category, this DB15 favors shooters who want a .300 Blackout AR built for suppressed and short-barrel-style performance.

Key Specifications

• Chambered in .300 AAC Blackout with a 1:8-inch rate of twist.
• Features a 16-inch barrel finished in black nitride.
• The muzzle is threaded 5/8-24, ready for a suppressor.
• Uses a manual thumb safety.
• Ships with no sights installed, ready for an optic.
• Overall length is 32.75 inches, weighing approximately 8.45 pounds.
• Feeds from an included 30-round PMag.
• The muzzle is threaded 5/8-24 tpi.
• Operates as a Semi-Auto action.

Frequently Asked Questions

Is this rifle suppressor-ready? Yes, the muzzle is threaded 5/8-24 for a suppressor or muzzle device.

Does a magazine come with this rifle? Yes, a 30-round PMag ships with the rifle.

Buy the Diamondback DB15 .300 AAC Blackout

A .300 Blackout AR built for suppressed and short-barrel-style performance is exactly what this DB15 delivers. As soon as it is ready to ship, order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.