Diamondback DB15 .300 AAC Blackout

The Diamondback DB15 .300 AAC Blackout is an AR-style pistol designed for close-quarters handling, range work, and tactical training. Its compact configuration keeps overall profiles manageable while supporting modular accessory mounting on the handguard.

The firearm is built with forged 7075-T6 aluminum upper and a Diamondback carbon lower for a durable platform and a familiar AR-style ergonomics set. The 9-inch M-LOK free-float handguard accepts standard M-LOK accessories, and a Magpul MOE grip with a foam-padded buffer tube provides a secure, ergonomic hold.

Key Specifications

• The caliber is .300 AAC Blackout.
• The barrel length is 10 inches.
• The barrel material and finish are 4150 CrMoV with black nitride.
• The barrel twist rate is 1:8".
• The gas system is pistol-length.
• The bolt carrier group is shot-peened and magnetic particle inspected with a Mil-Spec 8620 carrier.
• The upper receiver is A3 flattop forged 7075-T6 aluminum.
• The lower receiver is forged 7075-T6 aluminum (Diamondback Carbon lower).
• The handguard is a 9-inch M-LOK free-float rail.
• The muzzle device is an A2 flash hider (5/8 x 24).

Buy the Diamondback DB15 .300 AAC Blackout pistol online today for a compact AR-style platform with a 10-inch black nitride barrel and modular M-LOK handguard suitable for range and training use.