The Diamondback Carbon DB15 (Diamondback part no. DB1717K002) is a 5.56 NATO AR-15 built for shooters who want a precise, well-finished rifle without extra weight. Diamondback Firearms machines the upper and lower from 7075-T6 aluminum and runs a 16-inch medium-contour barrel with a black nitride finish for corrosion resistance and long service life. A 10-inch free-float quad rail keeps the handguard slim while leaving room for lights, grips, and optics. This DB15 works equally well as a home-defense rifle, a range gun, or a dependable truck rifle.

Key Specifications

• Chambered in .223 Remington/5.56 NATO for widely available ammunition.
• Barrel length is 16 inches with a medium contour.
• Rate of twist is 1:8 inches, cut right-hand.
• The barrel wears a black nitride finish for corrosion resistance.
• The muzzle uses a 1/2-28 tpi thread pattern, topped with an A2 flash hider.
• Upper and lower receivers are machined from 7075-T6 aluminum.
• A 10-inch free-float quad rail handguard covers the barrel and gas system.
• The bolt carrier group is shot-peened and MPI-tested mil-spec 8620 steel.
• The safety is a manual thumb selector.
• The upper ships optics-ready, with no fixed sights installed.

Frequently Asked Questions

Does the DB15 include a magazine? Yes, it ships with a 30-round magazine.

What is the receiver made from? 7075-T6 aluminum, precision-machined for both the upper and lower.

Is this rifle optics-ready? Yes, it ships without fixed sights so any optic can be mounted directly.

Buy the Diamondback Carbon DB15 5.56 NATO Rifle, 16-inch Barrel, 10-inch Rail

This Carbon DB15 is a strong pick from our AR rifles catalog. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.