CMMG Resolute MK4 6mm ARC 16.1" Midnight Bronze

CMMG Resolute MK4 6mm ARC

The 6mm ARC cartridge represents a significant advancement in intermediate-range rifle performance. Designed to deliver ballistic capabilities that rival larger AR10-platform rounds, this cartridge achieves extended-range performance while maintaining the ergonomic advantages and modularity of the AR15 platform.

Key Features

Caliber & Ballistics

• Chambered in 6mm ARC for superior long-range performance
• Delivers AR10-class ballistic performance in a compact AR15 package
• Excellent velocity retention and energy downrange

Handguard & Mounting

• EML (Enhanced Modular Lightweight) handguard design
• Full-length M-LOK slots on both sides and bottom
• M-LOK mounting points between top Picatinny rail sections
• Integrated Picatinny rail for optic mounting

Ambidextrous Controls

• Ambi safety selector (60/90 degree)
• Ambi charging handle for left and right-handed shooters
• Ambi magazine catch
• Extended magazine release button

Trigger & Internals

• ZEROED drop-in single-stage trigger
• Ambi bolt catch
• Polymer dust cover
• Muzzle brake for recoil management

Ergonomics

• Pistol grip designed for comfort and control
• 16.1" barrel for balance of velocity and handling
• Midnight Bronze finish for durability and aesthetics

What's Included

Each rifle ships with one 10-round magazine, ready for immediate use.

Why Choose 6mm ARC?

The 6mm ARC bridges the gap between intermediate and magnum cartridges. It offers shooters extended effective range without the recoil, cost, or complexity of larger calibers. The Resolute MK4 platform ensures you have a modern, modular rifle that grows with your skills and needs.