CMMG RESOLUTE MK4 55A9D0BCT | 5.56 NATO | 16.1 in

The CMMG RESOLUTE MK4 is a carbine built on the MK4 platform and chambered in 5.56x45mm, offering familiar AR ergonomics with a modern component suite. It features CMMG’s EML15 M-LOK handguard, a RipStock, and a suite of ZEROED parts for ambidextrous control and modularity. The rifle ships with a Magpul 30-round PMAG and a Cerakote Coyote Tan finish for a distinct two-tone appearance. For an optic under $1,000 that pairs well with this carbine, consider the Vortex Strike Eagle 1-6×24 for versatile close-to-mid range use.

Applications: competition shooting (e.g., 3-gun) and varmint or small-medium game hunting where a light, maneuverable carbine is appropriate.

Product Specifications

• The manufacturer is CMMG.
• The model and part number are RESOLUTE MK4 55A9D0BCT.
• The caliber is .223 Rem / 5.56 NATO.
• The action is Semi-Automatic.
• The barrel measures 16.1 inches for balanced handling.
• The barrel is made of 4140CM SBN steel with a 1:7 twist.
• The muzzle device is a CMMG ZEROED Muzzle Brake.
• The muzzle threads are 1/2 x 28.
• The gas system is a .750 mid-length gas system.
• The handguard is a CMMG EML15 M-LOK design.
• The receivers are Billet 6061 T6 upper and Mk4 Forged 7075 T6 lower.
• The magazine is a detachable Magpul 30rd PMAG (30-round capacity) included with the rifle.
• The weight is 6.44 lbs.
• The overall length is 32.5 in.
• The UPC is 810144722771.

This RESOLUTE MK4 configuration brings together ambidextrous controls, a modern M-LOK handguard, and CMMG’s RipStock for a carbine that is both adaptable and comfortable for extended use. The ZEROED trigger group and the inclusion of a Magpul PMAG make this rifle ready for range sessions, competition stages, or field use where familiar AR performance and modularity are desirable. Its Cerakote Coyote Tan two-tone finish and robust materials signal a build intended for practical, everyday carry and accessory integration.

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