The CMMG Resolute MK3 is a semi-automatic rifle chambered in .308 Winchester, finished in tungsten. It ships with a 16-inch barrel and a 20-round magazine. 
 

Key Specifications 

• Manufacturer: CMMG 
• Model: Resolute MK3 
• Type: Semi-Automatic Rifle 
• Caliber: .308 Winchester 
• Barrel Length: 16 inches 
• Capacity: 20 rounds (includes one magazine) 
• Condition: New in Box 
• Finish Color: Tungsten 
   

Detailed Features 

 
The upper and lower are machined from 7075 T6 aluminum, which keeps the weight reasonable for a .308 platform. A ZEROED muzzle brake reduces muzzle rise for faster follow-up shots. The 15-inch free-float M-LOK handguard handles heat well and provides a clean rail surface for accessories without touching the barrel. The ZEROED drop-in trigger has a short, consistent pull that makes the rifle shoot better than its price suggests. 
 
Controls are fully ambidextrous: safety selector, charging handle, magazine catch, and extended mag release all work from either side. That's a practical feature that often costs extra on competing builds.

Discussion about the CMMG Resolute MK3 reflects genuine appreciation for build quality. Owners consistently note that the rifle feels solid and cycles smoothly, even during fast strings. The .308 chambering is popular for its reach on deer-sized game and for punching steel at distance, and the 16-inch barrel makes it easier to handle than a full-length rifle without much ballistic penalty.

Accessory options come up often. The M-LOK handguard and standard lower layout mean optics, grips, and lights attach without modification, which owners appreciate.

The main complaints center on weight and price. A .308 AR is inherently heavier than its 5.56 counterparts, and some buyers find the Resolute heavier than expected for field carry. On price, opinions split: some feel the quality justifies the cost compared to budget-tier alternatives, while others point to competitors offering similar specs for less. Stock availability on specific configurations has also been an occasional frustration.

New shooters sometimes ask about managing recoil, and the general advice is to focus on technique before adding a muzzle device or stock pad.