The Diamondback DB15 (brand part no. DB175BK001) is a semi-automatic AR-15-platform rifle chambered in 5.56 NATO, finished in black and built around a 16-inch barrel with a 10-inch free-float M-LOK rail, in a California-compliant configuration with a fixed 10-round magazine. Diamondback Firearms builds this DB15 for compliance-state shooters who still want the standard DB15’s handling. Among semi-automatic rifles in the semi-auto rifles category, this DB15 favors California shooters who want a Diamondback Firearms-built 5.56 AR.

Key Specifications

• Chambered in 5.56 NATO.
• Operates as a semi-automatic AR-15-platform rifle.
• Features a 16-inch barrel.
• Fitted with a 10-inch free-float M-LOK rail.
• Feeds from a 10-round compliance magazine.
• Built in a California-compliant configuration.
• Finished in black.

Frequently Asked Questions

Is this rifle California-compliant? Yes, it ships with a 10-round compliance magazine.

What rail does this rifle use? A 10-inch free-float M-LOK rail.

Buy the Diamondback DB15 Rifle

A California-compliant 5.56 AR with a free-float M-LOK rail is exactly what this DB15 delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.