CMMG Resolute MK4 6mm ARC 16.1" Rifle - TiN Coated Barrel

The CMMG Resolute MK4 in 6mm ARC delivers precision shooting capabilities with enhanced barrel longevity through titanium nitride coating. This rifle combines CMMG's proven AR-15 platform reliability with the ballistic advantages of the 6mm ARC cartridge for extended range performance.

What Makes This Different

The titanium nitride barrel coating significantly extends barrel life while reducing fouling compared to standard phosphate finishes. The 6mm ARC chambering provides superior ballistic coefficient over .223/5.56, delivering flatter trajectories and better wind resistance at extended ranges. CMMG's Resolute series incorporates upgraded components throughout, including enhanced bolt carrier groups and improved trigger systems that exceed mil-spec standards.

Key Features

• 16.1-inch medium taper barrel with titanium nitride coating for extended service life
• 6mm ARC chambering optimized for long-range precision shooting
• CMMG RipStock collapsible stock with integrated QD sling attachment points
• M-LOK compatible handguard with full-length top rail for optics mounting
• Single-stage trigger with crisp break and short reset
• Ambidextrous charging handle for enhanced manipulation
• Compatible with standard AR-15 magazines and components

Field performance demonstrates consistent sub-MOA accuracy with quality ammunition, making this rifle suitable for competitive precision shooting, hunting medium game at extended ranges, and tactical applications requiring precise shot placement. The titanium nitride coating maintains accuracy longer between cleanings while resisting corrosion in adverse weather conditions. The 6mm ARC cartridge provides effective terminal performance on targets beyond 500 yards where .223/5.56 begins to lose effectiveness.

Technical Specs

• Caliber: 6mm ARC
• Barrel Length: 16.1 inches, medium taper profile
• Barrel Coating: Titanium Nitride (TiN)
• Overall Length: 32.25-35.5 inches (stock collapsed/extended)
• Weight: Approximately 7.2 pounds
• Twist Rate: 1:7.5 inches
• Gas System: Mid-length with low-profile gas block
• Handguard: M-LOK compatible, free-floating design
• Stock: CMMG RipStock, 6-position adjustable
• Manufactured: Columbia, Missouri, USA

This rifle represents a significant upgrade over standard AR-15 configurations for shooters requiring extended range capabilities and enhanced durability. The combination of premium barrel coating and superior cartridge ballistics provides measurable advantages in accuracy retention and effective range.