Diamondback DB10 .308 Win AR Rifle with 18" Barrel - Flat Dark Earth (FDE) Finish

The Diamondback DB10 .308 Win AR rifle delivers proven .308 Winchester performance in a modern, configurable platform built for hunters, precision shooters, and long-range learners. This 18-inch barreled rifle combines genuine mil-spec components with Diamondback's no-nonsense engineering philosophy—solid accuracy, reliable function, and the modularity that makes the AR platform so adaptable. Whether you're dialing in distance at the range, hunting medium to large game, or just exploring what a .308 AR can do, the DB10 starts you off right without unnecessary bells or marketing fluff.

Build quality starts with a forged 7075 T-6 aluminum upper and lower receiver set, featuring Diamondback's proprietary Black Gold finished lower with an enhanced trigger guard for faster controls. The 18-inch barrel is cut from 416-R stainless steel, nitride-hardened, fluted for weight savings, and fitted with a 1:10 right-hand twist—a solid all-rounder for .308 ballistics. Midlength gas system tuning keeps recoil manageable and the action running smooth. A mil-spec, shot-peened bolt carrier group (magnetic-particle inspected 8620 steel) and standard trigger round out the heart of the rifle.

The handguard is a 15-inch Diamondback M-LOK rail with anti-slip texture pads, giving you room to mount optics, lights, or accessories without fighting your grip. A Magpul CTR stock lets you dial length of pull to your body and gear, while the MOE-K2 grip provides comfort and control. Out of the box, you get a Diamondback CNC DBSB IV flash hider (5/8 x 24 thread) and a 20-round Gen M3 Pmag. Overall weight runs 8.73 pounds, and the stock collapses to 36 inches, expanding to 39.25 inches fully extended—compact enough for hunting or tactical use, roomy enough for all-day range work.

This is a straightforward, quality-built .308 AR that rewards good optics, decent ammunition, and solid fundamentals. No marketing theater—just a rifle ready to work.

Key Features

• Forged 7075 T-6 aluminum upper and lower receivers with Diamondback Black Gold finish
• 18-inch 416-R stainless steel barrel, nitride-hardened and fluted, 1:10 RH twist
• Midlength gas system for balanced recoil and reliability
• Mil-spec shot-peened bolt carrier group with magnetic-particle inspection
• 15-inch M-LOK handguard with anti-slip texture pads
• Magpul CTR collapsible stock and MOE-K2 grip for comfort and control
• Diamondback CNC DBSB IV flash hider (5/8 x 24) included
• Includes 20-round Pmag Gen M3
• Compact profile: collapses to 36 inches, extends to 39.25 inches

Specifications

Frequently Asked Questions

What's the purpose of the fluted barrel on this .308 AR?

Fluting reduces weight without sacrificing stiffness—important on an 18-inch .308 platform where every ounce matters for handling. The Diamondback barrel is 416-R stainless and nitride-hardened, so you get durability and corrosion resistance alongside the weight savings.

Is the DB10 suitable for hunting?

Yes. The .308 Winchester is a proven, versatile hunting round for medium to large game. The 18-inch barrel and midlength gas system deliver good velocity and flat recoil impulse. The rifle is compact enough to maneuver in brush or vehicles, and the M-LOK rail lets you mount a quality hunting optic. Ultimately, your ammunition, optics, training, and shot placement matter most.

What's included in the box?

The rifle comes with one 20-round Pmag Gen M3 and the Diamondback CNC DBSB IV flash hider already installed. You'll need to supply an optic, mounting system, and ammunition.

Can I swap out the stock and grip?

Yes. The DB10 uses standard AR-platform components. The Magpul CTR stock and MOE-K2 grip are industry-standard and can be replaced with other compatible aftermarket options if you prefer a different length of pull, cheek rest height, or grip angle.