US Palm has begun selling CAT 4 Storm rifles plus EOS suppressors following a SHOT Show 2026 appearance in Las Vegas. Duty-oriented CAT 4 Storm rifles feature Mono-Loc, steel-reinforced upper wear points, a 16-inch cold hammer forged barrel, Hiperfire EDT Designated Marksman Trigger, and the Hurricane hybrid flash hider compensator, while a pistol brace model uses an 11.5-inch barrel at identical $1,399.99 MSRP. EOS units are 3D-printed low-back-pressure suppressors, three of them Inconel.