Diamondback DBX57 5.7×28 | 8in | DB1614L051

The Diamondback DBX57 is a semi-automatic pistol chambered in 5.7x28mm built on a forged 7075-T6 aluminum receiver and fitted with an 8-inch threaded barrel and M-LOK handguard. It uses a locked-breech, dual gas piston operating system and ships with a 20-round magazine that is FN Five-SeveN compatible. The DBX57 is configured without iron sights and includes a DBX muzzle device threaded 1/2×28 for accessories or suppressors. For a compact reflex optic that pairs well and stays under $1,000, consider the Trijicon MRO for clear sight picture and reliable performance.

Product Specifications

• The manufacturer is Diamondback Firearms.
• The ATF model is DBX.
• The caliber is 5.7 x 28 mm.
• The action type is Semi-Auto.
• The barrel is 8 inches of stainless steel with a 1:9 RH twist and 1/2×28 muzzle threads.
• The muzzle device included is a DBX Muzzle Device.
• The operating system is a locked breech with a dual gas piston.
• The receiver is forged 7075-T6 aluminum.
• The handguard is 6061 aluminum and is M-LOK compatible.
• The grip is a MagPul MOE K grip.
• The trigger is a Mil-Spec AR-15 style trigger.
• The pistol includes a 20-round magazine that is FN Five-SeveN compatible.
• The listed weight with an empty magazine is 3.0 lb.
• The overall height is 7.3 inches.
• The UPC is 810035752702.

The DBX57 is a focused, no-nonsense platform for accurate, low-recoil target work and competitive or range-oriented shooting. Its AR-style controls and continuous top rail make optics mounting and component swaps straightforward, while the dual-piston system provides a cleaner-running alternative to direct impingement for shooters who plan regular range sessions. If you want a versatile 5.7x28mm pistol with an emphasis on modularity and controllable recoil, the DBX57 is worth a close look.

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