CMMG Resolute Mk4 Rifle | 9mm | 16.1″ Barrel

The CMMG Resolute Mk4 is a pistol-caliber carbine built on the MK4 platform with a 16.1″ barrel finished in Charcoal Cerakote. It uses a radial delayed blowback operating system and ships with a 30-round magazine, combining robust materials with PCC-specific features for reliable function. This configuration is well-suited to range training and pistol-caliber carbine competition.

Recommended optic: a Vortex Strike Eagle 1-6×24 provides a fast, versatile sighting option under $1000 and pairs well with the Resolute Mk4 for distances typical of PCC use.

Product Specifications

• The platform is MK4.
• The caliber is 9mm Luger.
• The operating system is RADIAL DELAYED BLOWBACK.
• The barrel length is 16.1 inches.
• The barrel twist is 1:10.
• The barrel material is listed as 4140CM SBN.
• The muzzle device is a CMMG ZEROED MUZZLE BRAKE.
• The muzzle thread is 1/2 X 28.
• The upper receiver is BILLET 6061 T6 ALUMINUM.
• The lower receiver is MK4 FORGED 7075 T6 ALUMINUM.
• The hand guard is a CMMG EML15 M-LOK.
• The finish is CHARCOAL CERAKOTE.
• The charging handle is CMMG ZEROED AMBI.
• The trigger type is MIL-SPEC SINGLE STAGE.
• The product UPC is 810097500495.

The Resolute Mk4 delivers a purpose-built 9mm AR platform with quality receivers and PCC-oriented features. Its combination of a radial delayed blowback system, durable materials, and a full-length handguard make it a practical choice for serious range time and competition. The rifle’s configuration supports easy optics mounting and accessory customization while keeping controls familiar to AR users.

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