Century Arms | US PALM STORM CAT4 RI00010001AAN | 5.56 16″

The US PALM STORM CAT4 is an evolution of the AR/M4 platform, built with reinforced wear points and industry-standard materials for long service life. It ships optic-ready with a full-length Picatinny rail and includes ambidextrous controls and modern furniture for comfortable handling. For a capable optic under $1,000 that pairs well with this rifle, consider a Vortex Strike Eagle 1-8×24; it covers close-to-medium ranges while remaining within the budget constraint.

Common applications for this rifle include duty/training work and practical competition or range/practical shooting.

Product Specifications

• The manufacturer is Century Arms (US PALM).
• The model is listed as STORM CAT4.
• The caliber is .223 REM/5.56 NATO.
• The action is Semi-Auto.
• The barrel length is 16 inches.
• The barrel type is Cold Hammer Forged.
• The barrel material is 4150 chrome moly steel.
• The magazine capacity is 30 rounds (ships with one magazine listed).
• The finish on receivers is Type III Hardcoat Anodized.
• The upper receiver material is 7075-T6 aluminum.
• The lower receiver material is 7075-T6 aluminum.
• The stock type is Magpul DT carbine stock.
• The handguard interface is M-LOK 7-sided US Palm rail.
• The trigger is a Hiperfire EDT designated marksman trigger.
• The rifle ships optic-ready with a full-length Picatinny rail.
• The twist rate is 1:7.
• The overall length (collapsed) is 33.5 inches and (extended) is 36.8 inches.
• The UPC is 787450951532.

The STORM CAT4 blends proven AR geometry with reinforced components and modern furniture to deliver a serviceable, adaptable platform. Its cold hammer-forged barrel, hardcoat-anodized receivers and ambidextrous controls make it straightforward to set up for training, competition or extended range sessions. The optic-ready rail and common AR-pattern controls simplify mounting optics and accessories to match specific mission profiles or shooting preferences.