The CMMG Resolute MK4 is a semi-automatic rifle chambered in .350 Legend with a 16.1-inch barrel and a 10-round capacity. It ships new in box with a Midnight Bronze finish over 7075 T6 aluminum construction, which keeps weight down without giving up rigidity. 
 

Key Specifications 

• Model: Resolute MK4 
• Caliber: .350 Legend 
• Barrel Length: 16.1 inches 
• Capacity: 10 rounds 
• Condition: New in Box 
• Finish Color: Midnight Bronze 
• Manufacturer: CMMG 
• Manufacturer Part Number: 35A2C0A-MB 
• Type: Modern Sporting Rifle 
   

Features 

 
The action is semi-automatic, useful for quicker follow-up shots in dynamic shooting situations. The CMMG RipStock is a six-position collapsible stock that adjusts length of pull to fit different shooters and positions. The ZEROED drop-in trigger has a crisp, consistent pull. A threaded muzzle brake reduces recoil and muzzle rise during rapid fire. 
 
The .350 Legend caliber is worth noting for hunters in states with straight-walled cartridge regulations — it meets those requirements while delivering solid terminal performance on deer-sized game. The Midnight Bronze Cerakote finish holds up well against moisture and field wear.

The CMMG Resolute MK4 in .350 Legend draws mostly positive feedback, with some recurring criticisms worth noting.

Owners consistently praise the build quality and reliability. The semi-automatic action runs smoothly, and the .350 Legend caliber is popular with hunters in states that restrict centerfire rifle hunting to straight-walled cartridges — it performs well at hunting distances without punishing recoil. The Midnight Bronze finish gets a lot of attention; it looks distinctive and holds up in the field.

Accuracy is frequently discussed. Shooters report tight groupings once properly zeroed, and the ergonomics get good marks for comfort during longer range sessions.

On the critical side, a number of users find the rifle heavier than expected for a semi-auto in this format. Magazine compatibility and feeding reliability with certain ammunition brands comes up occasionally, though experiences vary widely. Overall the community response leans favorable, particularly for hunters and shooters specifically seeking the .350 Legend platform.