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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Specs at a glance
Key attributes
| upc | 810144722818 |
| manufacturer | CMMG |
| manufacturer part number | 55A9D0B-TNG |
| action | Semi-Auto |
| atf type | MODERN SPORTING RIFLE |
| barrel length | 16.1" |
| caliber/gauge | .223 REM/5.56 NATO |
| capacity | 30 |
| color | TUNGSTEN |
| length | 39.7500 |
| model | Resolute |
| sights | No |
| state restriction (il) | NO SALE TO ILLINOIS PICA |
| state restriction (or) | NO SALE TO OREGON |
| state restriction (ri) | NO DIRECT SHIP TO RHODE ISLAND |
| state restriction (wa) | NO DIRECT SHIP TO WASHINGTON |