For shooters and security professionals who prioritize reliability and modularity in a compact defensive platform, the design choices and operating system matter. The Diamondback DBX57 CFB delivers a purpose-built semi-auto pistol platform that blends modern materials with a proven piston cycle for reduced fouling and consistent function.
Diamondback DBX57 CFB is a semi-auto, locked-breech pistol that uses a dual gas piston operating system and a black hard coat anodized aluminum frame and handguard. 
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Design and Build Quality
The DBX57 CFB uses a hard coat anodized aluminum frame and M-LOK compatible handguard, giving operators a lightweight but durable chassis for mounting lights, grips, and other mission-specific accessories. The DBX muzzle device is threaded 1/2×28 RH for standard accessory compatibility. At a listed price of $894.99, this platform targets users who want AR-style ergonomics in a compact semi-auto package.
Operating System and Performance
The dual gas piston operating system and locked breech design are notable features here. Piston systems help isolate carbon and heat from the receiver, which can improve reliability during extended firing and lower maintenance frequency compared with direct impingement systems. The DBX57 CFB retains a standard AR15 Mil-Spec trigger for a familiar control feel and predictable reset under stress.
Practical Applications
Intended for tactical defense and close-quarters roles, the DBX57 CFB is well-suited for entry teams, range training, and personal defense setups where modularity and quick accessory mounting are priorities. The M-LOK handguard makes it straightforward to add lights or backup sights without heavy modifications.
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Magazine and Controls
The DBX57 CFB ships with a 20rd magazine that is FN Five-SeveN compatible, providing high-capacity options for training and defensive roles. Controls mirror AR-pattern ergonomics, easing the transition for users familiar with modern sporting rifles. The manufacturer lists the model as available in various configurations, allowing buyers to choose options that best fit their carrying and deployment needs.
For an engineered semi-auto that emphasizes a low-maintenance piston cycle, modular M-LOK mounting, and AR15-compatible controls, the Diamondback DBX57 CFB is a solid option at $894.99. Check current availability to reserve one or compare dealer listings—click the link below to go directly to the product shop page and complete a purchase through the retailer.
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People Also Ask
What makes this product stand out from competitors?
This product offers superior quality and innovative features that set it apart in the market. Its design focuses on both performance and reliability, making it a top choice for professionals and enthusiasts alike.
Is this product suitable for beginners?
Yes, this product is designed with user-friendly features that make it accessible to beginners while still offering advanced capabilities for experienced users.
What warranty or support is available?
The product comes with comprehensive warranty coverage and excellent customer support to ensure your satisfaction and peace of mind.
How does this compare to similar products in its price range?
This product offers exceptional value for its price point, providing features and quality that typically cost significantly more in comparable alternatives.
What maintenance is required?
Minimal maintenance is required thanks to the product’s durable construction and quality materials. Regular cleaning and occasional inspections will keep it performing optimally.
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