CMMG Resolute MK4 6mm ARC 16.1" Tungsten

CMMG Resolute MK4: Modern Performance in 6mm ARC

The 6mm ARC cartridge represents a significant advancement in intermediate rifle design. Engineered to deliver ballistic performance that rivals larger AR10-platform rounds, this caliber achieves extended-range capability within the proven AR15 platform—a meaningful advantage for shooters seeking versatility without sacrificing performance.

Design and Ergonomics

The Resolute MK4 incorporates thoughtful design choices for modern shooters:

• EML Handguard: Full-length M-LOK slots on both sides, bottom, and between top Picatinny rail sections provide extensive mounting flexibility for optics, lights, and accessories
• Ambidextrous Controls: 60/90-degree ambi safety, ambi mag catch, ambi charging handle, and extended mag release button accommodate both left and right-handed shooters
• ZEROED Parts Package: Drop-in single-stage trigger, pistol grip, bolt catch, and polymer dust cover—all designed to work together seamlessly

Practical Features

• 16.1" barrel optimizes velocity and handling in a compact package
• Tungsten finish provides durability and corrosion resistance
• Muzzle brake reduces recoil and muzzle rise
• Includes CMMG 10-round magazine

This rifle delivers the ballistic reach modern shooters demand while maintaining the ergonomic familiarity of the AR15 platform.