The Diamondback DBX 57 braced pistol in 5.7x28mm with a black finish (brand part no. DB1629L001) is a compact, lightweight platform delivering AR-style performance in a highly maneuverable package. Diamondback Firearms houses a locked-breech dual gas piston operating system in precision-machined 7075 aluminum upper and lower receivers with a hard-coat anodized finish, and the 8-inch threaded barrel pairs with a DBX muzzle device. The M-LOK compatible aluminum handguard offers ample accessory mounting, and a Magpul MOE-K grip with handstop kit works alongside a rear Picatinny-mounted side-folding brace for stable handling. The pistol runs FN Five-seveN-compatible magazines and ships with one 20-round magazine. Among braced semi-auto handguns, this DBX 57 configuration favors shooters who want high-velocity 5.7x28mm performance in a compact, brace-stabilized platform.

Key Specifications

• The chambering is 5.7x28mm.
• The capacity is 20+1 rounds.
• The barrel measures 8 inches and is threaded, paired with a DBX muzzle device.
• The receivers are 7075 aluminum, hard-coat anodized.
• The operating system is a locked-breech dual gas piston design.
• The stabilizing brace is a rear Picatinny-mounted side-folding brace.
• The magazines are FN Five-seveN compatible, with one 20-round magazine included.
• Rifled with a 1-in-9-inch rate of twist.
• Shipping weight of approximately 5.25 pounds.

Frequently Asked Questions

What magazines does this pistol use? FN Five-seveN-compatible magazines, with one 20-round magazine included.

Does this pistol have a folding brace? Yes, a rear Picatinny-mounted side-folding brace for stable handling.

Buy the Diamondback DBX 57 Braced Pistol

High-velocity 5.7x28mm performance in a compact, brace-stabilized platform is exactly what this DBX 57 delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.