The CMMG Resolute MK4 is a semi-automatic rifle chambered in .22 ARC with a black finish. It weighs 6.40 lbs and comes with a 16.10-inch barrel and 10+1 capacity. 
 

Key Specifications 

• SKU: 2024020307 
• UPC: 810148627102 
• Condition: New in Box 
• Finish: Black 
• Safety: Ambidextrous Safety Lever 
• Trigger: Single-Stage 
• Grip: Black Polymer 
• Stock: CMMG 6 Position RipStock 
• Weight: 6.40 lbs 
• Length: 32.50" 
• Barrel Length: 16.10" 
• Barrel Twist Rate: 1:7.50" 
• Capacity: 10+1 RD 
• Action: Semi-Auto 
• Caliber: .22 ARC 
• Sights: Optic Ready 
   

Detailed Features 

The ambidextrous safety lever works from either side without regripping. The single-stage trigger has a consistent pull suitable for both range use and practical shooting. The CMMG RipStock is a 6-position adjustable stock that lets shooters dial in length of pull. At 6.4 lbs the rifle is light enough to carry all day. The optic-ready top allows mounting any preferred optic without modification. 
 

Usage 

The .22 ARC is a newer cartridge that fits the AR platform while offering better ballistics than .22 LR at longer ranges. The MK4 works well for range training and target shooting where low recoil is an asset. The 10+1 capacity is adequate for general shooting, though some users may prefer higher-capacity options for competition or tactical use.

The CMMG Resolute MK4 in .22 ARC gets generally positive feedback, with a few practical criticisms.

Build quality and ergonomics are consistent highlights. Users appreciate the sturdy construction and the optic-ready setup for easy customization. The semi-automatic action runs smoothly, and the .22 ARC caliber draws positive comments from shooters who want to practice without heavy recoil. New shooters in particular find the platform approachable.

The 10+1 capacity comes up as a limitation for those who use the rifle in competitive or tactical contexts where higher-capacity magazines would be preferred. Pricing generates mixed reactions — some feel the quality justifies the cost, while others think it should be more competitive relative to similar models. Aftermarket support for parts and accessories is viewed as a plus. A small number of users report feeding issues or stock preference concerns, though these are in the minority.