Brand: CMMG
Model: Resolute Mk4
Caliber: 5.56x45mm NATO
Firearm Fit: AR-Platform
Gun Platform: AR Style
Firearm Type: AR Platform
Handguards: M-LOK
Thread Pattern: 1 / 2"x28
Barrel Length: 16.10"
Receiver Finish: Black Armor Cerakote
Handguard Finish: Black

Features

Upgrade your build and make the quick switch to a 5.56mm carbine with the RESOLUTE® Mk4 Upper Group. Engineered for seamless compatibility and peak performance, this high-quality upper receiver allows you to easily customize your setup. Please note that this specific configuration does not include a bolt carrier group (BCG) or charging handle, giving you the flexibility to choose your own components. Personalize your firearm's aesthetic with a variety of durable Cerakote finishes designed to withstand harsh conditions while maintaining a sleek look. Perfect for tactical enthusiasts and builders alike, the RESOLUTE® Mk4 delivers reliability and precision in a versatile 5.56 platform.

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Shipping Restrictions

It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

Local Law Compliance

Certain firearm parts and accessories, including AR-style upper receivers, are subject to complex and frequently changing federal, state, and local laws and regulations. While an upper receiver may be lawfully sold and shipped as a component, the legality of possessing, assembling, configuring, or using an upper receiver in certain states (e.g., California, Washington State) and localities depends on how it is assembled, combined with other components, and ultimately used. You are solely responsible for ensuring that any assembly, configuration, possession, or use complies with all federal, state, and local laws, including any so-called “assault weapon” bans and short-barreled rifle restrictions. We do not provide legal advice and are not responsible for unlawful configurations or uses.

CMMG Resolute 16.1" Upper 5.56x45mm w/ 1:7 Twist Rate and MLOK Rail M-L W/ No BCG or CH, Armor Blk