CMMG Resolute MK4 Upper Receiver Group 338 ARC 16.10" EML 15

The CMMG Resolute MK4 is a complete AR-15 upper receiver group chambered in 338 ARC, built around a 16.10" black nitride barrel. The barrel features a 1:8 twist rate to accommodate more traditional .338 caliber projectiles. The upper includes a 15" EML free-float handguard with M-LOK attachment points. Designed to combine the AR-15 platform with large bore caliber stopping power, this 338 ARC configuration utilizes the same bolt as 6.5 Grendel systems for parts compatibility. The black armor Cerakote receiver finish provides enhanced durability and corrosion resistance.