Diamondback DBX57 5.7×28 8 in Pistol | 20rd | DB1629L001

The Diamondback DBX57 is a braced semi-automatic pistol chambered in 5.7x28mm that combines a compact footprint with AR-style ergonomics. It is built on precision-machined 7075 T-6 aluminum receivers, features an 8-inch threaded barrel, and offers an M-LOK compatible handguard for accessories. The DBX57 operates with a locked-breech, dual gas piston system and ships with a 20-round magazine compatible with FN Five-seveN magazines. For a paired optic under $1,000, a compact red-dot such as the Vortex Venom provides clear dots, low profile mounting, and fast target acquisition on this platform.

Product Specifications

• The caliber is 5.7 x 28 mm.
• The barrel measures 8 inches.
• The rate of twist is 1-in-9 right-hand.
• The muzzle is threaded with a 1/2×28 RH pattern.
• The pistol ships with a DBX Muzzle Device installed.
• The operating system is a locked-breech, dual gas piston design.
• The upper and lower receivers are 7075 T-6 aluminum.
• The handguard is a 6061 aluminum M-LOK compatible design.
• The grip is a Magpul MOE-K grip.
• The magazine provided is a 20-round magazine (FN Five-seveN compatible).
• The brace is a rear Picatinny-mounted side-folding brace (SB FS1913 style).
• The pistol ships with no sights installed.
• The trigger is a standard AR-15 mil-spec trigger.
• The overall length is 16.9 inches folded / 25.4 inches extended.
• The UPC is 810035752719.

The DBX57 balances modularity and compactness: its M-LOK handguard accepts lights and grips while the folding brace reduces carry length for transport. Suitable for range training and precision plinking, the platform’s compatibility with high-capacity FN Five-seveN-style magazines and AR-style controls makes it a practical choice for shooters who want controllability and low recoil in a compact package.

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