The US Palm STORM CAT4 is a semi-automatic rifle chambered in 5.56x45mm, designed with modern controls and a lightweight profile for versatile use. It features a 16-inch barrel with a 1-in-7 twist rate and a threaded 1/2×28 muzzle for compatibility with common muzzle devices. The rifle is finished in matte black and measures between 33.5 and 36.8 inches in overall length, depending on stock adjustment, with a total weight of approximately 7 pounds.
This model is equipped with a collapsible and folding stock and US Palm furniture, along with a Mono-Loc handguard for accessory mounting. It incorporates ambidextrous controls, including an ambi thumb safety, and is fitted with a Hyperfire EDT trigger for consistent performance. The rifle feeds from a 30-round magazine and ships with one magazine included. With no factory-installed sights, the platform is optics-ready and suited for a range of applications requiring a configurable 5.56 rifle.
