Diamondback DBX 5.7x28mm 8in Dark Grey Semi-Automatic Modern Sporting Pistol

Enhanced 5.7x28mm Caliber Performance

The Diamondback DBX harnesses the unique capabilities of the 5.7x28mm cartridge, offering high-velocity rounds that deliver flat trajectories and reduced recoil impulse. Chambered in this specialized cartridge, the DBX pistol excels in both target shooting and tactical applications. The 5.7x28mm round is noted for its exceptional penetration against soft body armor, making it a popular choice among competitive shooters and law enforcement professionals. Whether you’re punching paper at the range or engaging steel targets in competition, the DBX provides consistent accuracy and minimal muzzle flip for rapid follow-up shots.

Precision 8-Inch Barrel and Threaded Muzzle

At the heart of the DBX is a precision-crafted 8-inch barrel machined from high-grade steel and finished in a corrosion-resistant dark grey Cerakote. This longer barrel length enhances bullet velocity and sight radius, translating to improved accuracy at extended distances compared to typical handgun offerings. The barrel is threaded 1/2×28 RH to accept a wide range of muzzle devices, suppressors, or comp pins, allowing you to customize your pistol for reduced flash signature or sound suppression without altering headspace or point of impact.

Robust Dual Gas Piston Operating System

The DBX features a locked-breech, dual gas piston system engineered for maximum reliability under adverse conditions. By utilizing two gas pistons positioned above and below the barrel, Diamondback’s design channels propellant gases directly into the operating rods, cycling the bolt carrier with minimal fouling. Shooters will appreciate the smooth, consistent cycling across a variety of ammunition brands, reducing maintenance intervals and downtime at the range. This modern system also contributes to lower felt recoil and muzzle flip, enhancing shooter confidence during rapid-fire sequences.

Modular Dark Grey Aluminum Frame & M-LOK Handguard

Constructed from aircraft-grade aluminum, the dark grey anodized frame and free-float handguard combine lightweight durability with a tactical aesthetic. The handguard features full-length M-LOK slots on the 3, 6, and 9 o’clock positions for attaching lights, lasers, grips, and other aftermarket accessories. The modular M-LOK architecture ensures that you can tailor the DBX to your specific mission profile—whether that’s competitive shooting, personal defense, or recreational plinking—without adding unnecessary bulk or weight.

Optic-Ready Sights and Accessory Integration

Diamondback has engineered the DBX with an optic-ready slide cut, compatible with a wide array of micro red-dot sights. The low-profile steel iron sights co-witness with most reflex optics and feature a recessed front sight post for protection during harsh use. Thanks to the full-length Picatinny-style top rail, you have ample space for mounting mini red dots, holographic sights, or magnified optics to suit your preferred shooting style and target acquisition speed.

FN Five-SeveN® Compatible Magazine System

One of the DBX’s standout features is magazine compatibility with FN Five-SeveN® platforms. The pistol ships with a 20-round magazine that seamlessly accepts FN’s robust polymer magazines, giving shooters access to a broad selection of aftermarket capacity upgrades and mag extensions. The high-capacity design supports extended shooting sessions without frequent reloads, making it ideal for competitive disciplines like 3-Gun, IPSC, and USPSA, where every second counts.

Ergonomic Black Magpul® K-Type Grips

The DBX is fitted with black Magpul K-Type pistol grips, renowned for their aggressive texturing and full palm swell design. These grips enhance hand purchase and stability, allowing you to maintain a consistent grip under rapid-fire conditions. The ergonomic contour reduces shooter fatigue, promotes proper trigger finger placement, and naturally aligns your hand with the bore axis to mitigate muzzle rise during follow-up shots.

Versatile Applications for Sport and Defense

Whether you’re a competitive shooter seeking an edge in speed and precision or a tactical enthusiast building a lightweight defensive rig, the Diamondback DBX adapts to your needs. Its centerfire design, high-capacity feeds, and modular rail system make it equally at home on the range, in competition arenas, or as part of a home-defense collection. The DBX’s combination of low recoil impulse, flat trajectory, and magazine interchangeability ensures that you can deploy the same platform across multiple roles with minimal adjustments.

Maintenance, Durability, and Reliability

Diamondback’s engineering focus on ease of maintenance ensures that field-stripping the DBX is straightforward and tool-free. All key components—barrel assembly, bolt carrier group, and gas pistons—are accessible in seconds for cleaning and lubrication. The corrosion-resistant finishes on critical parts protect against rust and wear, even under humid or marine environments. Backed by stringent quality-control measures, the DBX delivers consistent performance shot after shot.

Comprehensive Warranty and Customer Support

Diamondback stands behind the DBX pistol with a robust limited lifetime warranty against manufacturer defects. Additionally, the company’s U.S.-based customer support team is available to answer technical questions, assist with parts orders, or provide guidance on maintenance procedures. Owning a DBX means you’re not just purchasing a high-performance sporting pistol—you’re gaining access to a network of support that keeps your firearm running at peak condition for years to come.