Description

US Palm Storm CAT 4 Rifle Overview

The US Palm Storm CAT 4 rifle represents a focused, modern sporting rifle platform engineered for shooters who demand reliability and ergonomic efficiency. Chambered in 5.56mm NATO, this rifle is built around a direct impingement gas system with a mid-length gas tube, providing a balanced recoil impulse and enhanced reliability across various ammunition types. The upper receiver features a free-floating M-Lok handguard, allowing for customizable accessory mounting without compromising barrel harmonics. The lower receiver incorporates an ambidextrous bolt catch and a flared magazine well for rapid reloads, while the A2-style flash hider and chrome-lined barrel contribute to extended service life. Every component of the US Palm Storm CAT 4 rifle is designed to meet the rigorous demands of competitive shooting, law enforcement training, and defensive use.

Overview

The US Palm Storm CAT 4 rifle is a direct descendant of the company’s commitment to producing combat-tested small arms components. This rifle integrates a 16-inch, 1:7 twist, chrome-moly vanadium barrel with a M4 feed ramp extension, ensuring reliable feeding with both 55-grain and 77-grain projectiles. The bolt carrier group is fully assembled with a Carpenter 158 steel bolt, shot-peened and magnetic particle inspected for structural integrity. The handguard is a 12-inch M-Lok aluminum rail system, featuring a continuous top Picatinny rail for optics mounting. The receiver set is machined from 7075-T6 aluminum forgings with a Type III hard coat anodized finish. The trigger is a single-stage, mil-spec unit with a nominal pull weight of 6.0 to 7.5 pounds. This US Palm Storm CAT 4 rifle ships with one 30-round magazine and a padded soft case.

Features & Specs

• Caliber: 5.56mm NATO (accepts .223 Remington)
• Barrel: 16-inch, chrome-lined, 1:7 twist, M4 feed ramp extension
• Handguard: 12-inch free-float M-Lok aluminum rail with continuous top Picatinny
• Receiver: 7075-T6 aluminum, Type III hard coat anodized, flared magazine well
• Bolt Carrier Group: Mil-spec Carpenter 158 steel, shot-peened, MPI tested
• Gas System: Mid-length direct impingement
• Trigger: Single-stage mil-spec, 6.0-7.5 lb pull weight
• Stock: 6-position adjustable, collapsible carbine stock
• Weight: 6.8 lbs (unloaded)
• Overall Length: 32 to 35.5 inches (collapsed to extended)

The US Palm Storm CAT 4 rifle includes a low-profile gas block, a carbine-length buffer system, and a standard A2 flash hider. The handguard utilizes T-nut mounting hardware for secure attachment, and the barrel nut is torqued to 40 ft-lbs with aerospace-grade thread compound. The rifle is shipped with a safety manual, cable lock, and one 30-round magazine.

Who It Is For

This US Palm Storm CAT 4 rifle is designed for the intermediate shooter who requires a reliable, mid-range platform for dynamic shooting disciplines, patrol rifle applications, or home defense. It is suitable for competitive shooters participating in two-gun or three-gun matches who need a lightweight, free-floated barrel system for rapid target transitions. The 5.56mm chambering makes it appropriate for shooters who maintain a single caliber across multiple platforms, simplifying logistics and training. Law enforcement officers seeking a patrol rifle with a proven gas system and ambidextrous controls will find the US Palm Storm CAT 4 rifle meets their operational needs. It is also a strong choice for the civilian shooter who values build quality and component traceability over cosmetic enhancements.

Shipping & FFL

This US Palm Storm CAT 4 rifle is classified as a Title I firearm under the Gun Control Act of 1968. It will be shipped to a Federal Firearms License (FFL) holder of your choice within the United States. You must select a receiving dealer who is licensed to accept firearm transfers and who is willing to process the transfer for you. The firearm will be shipped via common carrier with adult signature required. All applicable federal, state, and local laws and regulations must be followed. It is your responsibility to ensure that you are legally eligible to purchase and possess this firearm and that the receiving FFL will accept the transfer. Please contact the receiving dealer prior to purchase to confirm their policies and fees. We do not ship to PO boxes, APO/FPO addresses, or non-contiguous states without prior arrangement. This product is not available for export.

Specifications

Manufacturer Specifications

Caliber	5.56mm NATO (accepts .223 Remington)
Barrel	16-inch, chrome-lined, 1:7 twist, M4 feed ramp extension
Handguard	12-inch free-float M-Lok aluminum rail with continuous top Picatinny
Receiver	7075-T6 aluminum, Type III hard coat anodized, flared magazine well
Bolt Carrier Group	Mil-spec Carpenter 158 steel, shot-peened, MPI tested
Gas System	Mid-length direct impingement
Trigger	Single-stage mil-spec, 6.0-7.5 lb pull weight
Stock	6-position adjustable, collapsible carbine stock
Weight	6.8 lbs (unloaded)
Overall Length	32 to 35.5 inches (collapsed to extended)
SKU	ac-us-palm-storm-cat-4-rifle-45a681
Price	$1263.85
Stock Status	Instock

Frequently Asked Questions

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