CMMG Resolute MK4 6mm ARC 16.1" Barrel Semi-Auto Rifle

The CMMG Resolute MK4 in 6mm ARC delivers precision long-range performance in a versatile AR-15 platform. This rifle combines the ballistic advantages of 6mm ARC cartridge with CMMG's proven manufacturing quality for hunters and precision shooters demanding accuracy beyond standard 5.56 NATO capabilities.

What Makes This Different

The 6mm ARC chambering provides superior ballistic coefficient and energy retention compared to traditional AR-15 cartridges, maintaining effectiveness at extended ranges where 5.56 NATO begins to lose performance. The 16.1-inch barrel length optimizes velocity while maintaining maneuverability, striking an ideal balance for both hunting applications and precision shooting. CMMG's Resolute series incorporates enhanced components throughout the platform, including upgraded triggers and precision-machined receivers that exceed mil-spec tolerances.

Key Features

• 6mm ARC chambering for enhanced long-range ballistic performance
• 16.1-inch medium contour barrel with 1:7.5 twist rate
• CMMG single-stage trigger with crisp break and reset
• Magpul MOE stock and pistol grip for ergonomic handling
• 15-inch M-LOK handguard with full-length top rail
• Enhanced bolt carrier group with proper headspacing for 6mm ARC
• Compatible with standard AR-15 lower receivers and controls

Field performance demonstrates consistent sub-MOA accuracy with quality ammunition, making this rifle suitable for medium game hunting at ranges exceeding 400 yards. The 6mm ARC cartridge maintains over 1,000 ft-lbs of energy at 300 yards, providing ethical hunting power for deer-sized game. Weather-resistant finishes and quality construction ensure reliable function in adverse conditions, while the familiar AR-15 manual of arms requires minimal training for experienced shooters.

Technical Specs

• Caliber: 6mm ARC
• Barrel Length: 16.1 inches
• Overall Length: 35.5 inches (stock extended)
• Weight: Approximately 7.2 pounds
• Twist Rate: 1:7.5 inches
• Gas System: Mid-length
• Handguard: 15-inch M-LOK
• Stock: Magpul MOE adjustable
• Finish: Sniper Grey Cerakote
• Magazine Capacity: Uses 6mm ARC magazines

This rifle represents a significant upgrade in long-range capability over standard AR-15 platforms while maintaining familiar operation and modularity. The combination of 6mm ARC ballistics and CMMG's attention to manufacturing detail creates a precision instrument ready for serious hunting and target applications.