US PALM STORM CAT4 Pistol

5.56 NATO - 30rd - 10.5" CHF Barrel - Hiperfire EDT - HURRICANE Comp The STORM CAT4 Pistol delivers uncompromising performance in a compact, maneuverable platform built for serious shooters. Cold hammer forged 4150 chrome-moly barrel for exceptional longevity and accuracy, paired with Hiperfire EDT Designated Marksman Trigger for crisp, consistent break. Mono-Loc handguard system and full-length Picatinny rail provide rigid, optic-ready foundation for customization. Full ambidextrous controls ensure seamless operation for any shooter. HURRICANE Hybrid Flash Hider/Compensator. Type III hardcoat anodized 7075-T6 aluminum upper and lower receivers. US PALM 7-sided M-LOK rail. Magpul DT carbine stock. 30-round capacity.

10.5" Cold Hammer Forged Barrel

Cold hammer forged 4150 chrome-moly barrel provides exceptional longevity and accuracy. The CHF process produces consistent bore dimensions and superior rifling for precision under sustained fire.

Hiperfire EDT Trigger

Hiperfire EDT (Enhanced Duty Trigger) Designated Marksman Trigger delivers crisp, consistent break. The EDT design balances precision with duty-grade reliability for defensive and competition applications.

HURRICANE Hybrid Comp/Flash Hider

US PALM HURRICANE hybrid muzzle device handles flash suppression and recoil control. The aggressive helical, twisted-prong design follows barrel twist direction—redirects gases to keep the rifle flatter during fast follow-up shots while breaking up muzzle flash.

Mono-Loc Handguard System

US PALM Mono-Loc handguard delivers monolithic-level lockup. Precision rear-locking interface keys directly into upper receiver—creates ultra-secure foundation that resists flex, maintains accessory alignment, and keeps lasers or optics locked on target under hard use. Continuous top rail, full M-LOK modularity, rigid seven-sided profile.

Full Ambidextrous Controls

Full ambidextrous controls—safety selector, magazine release, bolt catch/release, and charging handle—fully accessible without breaking grip or shifting position. Faster, more intuitive shooting experience for support-side transitions, barricades, or rapid reloads under pressure.

7075-T6 Aluminum Receivers

Type III hardcoat anodized 7075-T6 aluminum upper and lower receivers provide strength with reduced weight. The aircraft-grade aluminum withstands tactical use.

Optic-Ready Picatinny Rail

Full-length Picatinny rail provides optic-ready platform. The continuous rail allows flexible mounting positions for red dots, magnified optics, or backup sights.

Magpul DT Stock

Magpul DT carbine stock with adjustable length-of-pull. The DT stock provides secure cheek weld and comfortable shoulder purchase. The US PALM STORM CAT4 delivers compact 5.56 NATO performance—10.5" CHF barrel with Hiperfire EDT and HURRICANE comp for duty-grade pistol capability.

Specifications:

• Manufacturer: US PALM
• Model: STORM CAT4 Pistol
• Caliber: 5.56 NATO
• Magazine Capacity: 30 rounds
• Barrel Length: 10.5 inches
• Barrel Material: 4150 Chrome Moly Steel
• Barrel Construction: Cold Hammer Forged (CHF)
• Muzzle Device: HURRICANE Hybrid Flash Hider/Compensator
• Upper Receiver: 7075-T6 Aluminum, Type III Hardcoat Anodized
• Lower Receiver: 7075-T6 Aluminum, Type III Hardcoat Anodized
• Handguard: US PALM Mono-Loc 7-Sided M-LOK
• Rail: Full-Length Picatinny (Optic-Ready)
• Trigger: Hiperfire EDT (Enhanced Duty Trigger) Designated Marksman
• Controls: Full Ambidextrous (Safety, Magazine Release, Bolt Catch/Release, Charging Handle)
• Stock: Magpul DT Carbine Stock
• Grip: US PALM
• Sight Configuration: Optic-Ready