The Diamondback DBX 57 Pistol from the DBX57 Series is a compact, American-made 5.7x28mm pistol that pairs an 8-inch Diamondback stainless barrel with a monolithic forged 7075 T-6 aluminum upper and a dual gas piston system with four adjustments for reliable, tunable operation in suppressed or unsuppressed roles. At just 3 lbs and a slim 1.75" at the controls, this black hardcoat anodize semi-auto pistol measures roughly 15.25" overall and feeds from FN Five-seveN compatible 20-round magazines for 20+1 capacity, making it well suited to personal defense, range work, and small game hunting where low recoil and high-velocity performance matter. The M-LOK compatible 6061 handguard accepts lights and grips without adding bulk, the reversible charging handle and rear Picatinny rail lend ambidextrous control and optics mounting flexibility, and the Magpul MOE K grip with mil-spec AR15 trigger keeps handling familiar to AR users. The DBX57 ships without stock/brace or sights and includes a 1/2x28 RH Diamondback flash hider; FFL transfer is required. For buyers seeking a sleek, high-velocity semi-auto platform in 5.7x28mm, the DBX 57 balances weight, modularity, and controllability.