CMMG Resolute MK4 338 ARC 16.1" Armor Black
- .300 Blackout 16.1" Midnight Bronze $1,551.65
- 22 ARC 16.1" Midnight Bronze $1,551.65
- 22 ARC, 16.1" Barrel $1,567.32
- 22 ARC, 16.1" Barrel, Coyote Tan $1,551.65
- 300 Blackout 14.5" Coyote Tan $1,490.18
- 300 Blackout 16.1" $1,551.65
- 300 Blackout 16.1" Tungsten $1,551.65
- 338 ARC 16.1" Midnight Bronze $1,551.65
- 338 ARC 16.1" Tungsten $1,567.32
- 350 Legend 16.1" $1,551.65
- 350 Legend, 16.1" Barrel $1,551.65
- 5.56 16.1" Coyote Tan $1,551.65
CMMG's Resolute MK4 in 338 ARC delivers AR-platform versatility with large-bore stopping power. 16.1" barrel, suppressor-ready, includes one 10-round magazine.
The CMMG Resolute MK4 in 338 ARC
CMMG has engineered the Resolute MK4 to harness the proven AR-15 platform while delivering the terminal authority of a large-bore cartridge. The 338 ARC represents a thoughtful evolution in intermediate rifle design.
Why 338 ARC?
The 338 ARC cartridge combines the sub- and supersonic versatility of the 300 Blackout with a critical advantage: more energy on target and less gas system tuning when transitioning between suppressed and unsuppressed fire. This means you get consistent performance across different shooting scenarios without constant adjustments.
Smart Engineering
Compatibility First — The 338 ARC uses the same bolt as 6.5 Grendel AR-15s, maximizing parts compatibility and simplifying your logistics.
Practical Configuration — The 16.1" barrel strikes a balance between velocity and maneuverability, making this rifle equally at home in tactical applications or hunting scenarios.
Suppressor Ready — The design accommodates modern suppressors seamlessly, whether you're running subsonic or full-power loads.
What's Included
Each rifle ships with one 10-round CMMG 338 ARC magazine, giving you a reliable foundation to build your shooting regimen.
The Resolute MK4 represents CMMG's commitment to practical rifle design—combining proven platform architecture with modern cartridge innovation.
