Diamondback DBX57 5.7×28 8in Braced Pistol, 20rd

About this product

The Diamondback DBX57 is a compact, braced semi-automatic pistol chambered in 5.7x28mm and built for controlled handling and modular accessory mounting. It uses a locked-breech, dual gas piston operating system housed in precision-machined 7075 T-6 aluminum receivers with a hard coat anodized finish. The pistol features an 8-inch threaded barrel paired with the DBX muzzle device, a 6061 aluminum M-LOK handguard and a Magpul MOE-K grip. A rear Picatinny-mounted SB Tactical side-folding brace (FS1913) is fitted to the platform and the package includes one 20-round magazine compatible with FN Five-seveN magazines.

Key Specifications

• The caliber is 5.7x28mm.
• The barrel length is 8 inches and is threaded 1/2×28 RH.
• The operating system is a locked-breech, dual gas piston design.
• The receivers are machined from 7075 T-6 aluminum with a hard coat anodized finish.
• The handguard is 6061 aluminum, M-LOK compatible.
• The pistol includes a DBX muzzle device and a reversible charging handle.
• It is fitted with a Magpul MOE-K grip and a Mil‑Spec trigger.
• Ships with one 20‑round magazine and is compatible with FN Five‑seveN magazines.
• The brace is a rear Picatinny‑mounted SB Tactical side‑folding brace (FS1913).
• Sights are not included.

Engineered for accuracy potential and compact portability, the DBX57 combines AR-style ergonomics with a lightweight aluminum platform and modular M-LOK accessory mounting. Its threaded barrel and reversible controls make it adaptable to a variety of range and target shooting setups, while the folding brace and compact footprint simplify transport and storage without sacrificing functionality.

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