US Palm Storm Cat4 AR Pistol 5.56 NATO 11.5″ Barrel Black 30+1

The US Palm Storm Cat4 is a compact, mission-ready AR pistol chambered in .223 Rem/5.56 NATO, built for shooters who demand maneuverability without sacrificing reliability. The 11.5-inch barrel keeps the platform tight and fast-handling, making it well-suited for home defense, range work, or use as an SBR host. Manufactured by Century Arms, this pistol ships with one 30-round magazine and is ready for immediate customization.

Key Specifications

• The Storm Cat4 is chambered in .223 Rem/5.56 NATO for broad ammunition compatibility.
• The barrel measures 11.5 inches for a compact, highly maneuverable profile.
• A semi-automatic action delivers smooth, reliable cycling shot after shot.
• Capacity is 30+1 rounds, with one 30-round magazine included.
• The rifling features a 1:7-inch rate of twist, optimized for stabilizing heavier 5.56 projectiles.
• The muzzle is threaded 1/2×28, ready for a suppressor, muzzle brake, or compensator.
• An ambidextrous safety accommodates both left- and right-handed operators.
• The barrel finish and overall color are black for a clean, consistent appearance.
• This pistol ships with no sights installed, providing a clean optics-ready platform.

Whether you’re building a dedicated home-defense platform or looking for a compact range pistol with serious upgrade potential, the Storm Cat4 checks the right boxes. The threaded muzzle and optics-ready configuration mean you can tailor this firearm exactly to your needs right out of the box. Add it to your collection and build it your way.