STORM CAT 4 Pistol

US Palm copy, The STORM Series marks a major milestone for US Palm, representing the brand’s first complete firearm platform and its first fully ground-up development effort engineered in West Palm Beach. Moving forward, the US Palm name signals a new era of innovation, performance, and American-driven design. Inspired by the hurricane classification system, STORM AR-pattern firearms are organized by category to clearly define feature tiers and performance levels. Leading the charge is the STORM CAT4, officially announced at SHOT Show 2026, available in both rifle and pistol configurations. Built to meet the demands of professionals and serious end users, the STORM CAT4 is a true duty-ready platform, engineered for uncompromising accuracy, reliability, and durability. Key enhancements include the US Palm Mono-Loc Handguard System with an accurized barrel nut and extension, a US Palm Ruggedized Upper Receiver with user-serviceable steel-reinforced wear points, a True Free Float 7-sided M-LOK handguard, US Palm ambidextrous charging handle, cold hammer forged barrel, Hiperfire EDT Designated Marksman Trigger, US Palm “Hurricane” Hybrid Flash Hider/Compensator, and US Palm Reduced Angle Grip. Designed for maximum performance in demanding environments, the STORM CAT4 delivers a refined feature set for end users who expect more—because when conditions get extreme, your rifle should weather any STORM.