CMMG Resolute MK4 5.56 NATO 16.1in 30rd

About this product

The CMMG Resolute MK4 is a carbine-length modern sporting rifle chambered in .223 Rem/5.56 NATO, built on CMMG’s MK4 platform to accept standard AR-15 accessories. It pairs a 16.1-inch barrel with a .750″ mid-length gas system to provide balanced handling and reliable operation. The package includes a CMMG EML15 M-LOK handguard, CMMG RipStock, and a Cerakote Tungsten bi-tone finish. Controls are ambidextrous and the rifle ships with a 30-round detachable magazine and a factory SV muzzle brake with 1/2-28″ threading.

Key Specifications

• The rifle is chambered in .223 Rem/5.56 NATO.
• The barrel measures 16.1 inches.
• The overall length is 32.5 inches.
• The unloaded weight is 6.44 lbs.
• The magazine capacity is 30 rounds.
• The action is Semi-Automatic.
• The rate of twist is 1:7″.
• The finish is Cerakote Tungsten (bi-tone).
• The stock is synthetic CMMG RipStock in black.
• The handguard and gas system are a CMMG EML15 M-LOK handguard with a .750″ mid-length gas system.

Purpose-built as a versatile carbine for range use, training, and general-purpose ownership, the Resolute MK4 combines familiar AR-15 ergonomics with CMMG-specific components to support a wide range of accessory setups. Its combination of a mid-length gas system, M-LOK handguard, and RipStock make it a practical, adaptable choice for shooters who value straightforward, reliable equipment and want a platform that accepts common AR parts and accessories.

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