The CMMG Dissent MK47 is a semi-automatic rifle chambered in 7.62x39mm, running a gas piston action on an AR-style platform. The 16.1-inch medium profile barrel has a CMMG Zeroed muzzle brake. Weight is 7.70 lbs. The side-folding stock adjusts the overall length from 27.6 to 37 inches. Finish is Cerakote black throughout. The rifle ships with a 30-round magazine. 
 

Key Specifications 

• Model: Dissent MK47 
• Caliber: 7.62x39mm 
• Action: Gas Piston 
• Barrel Length: 16.1 inches 
• Capacity: 30+1 rounds 
• Weight: 7.70 lbs. 
• Overall Length (Adjustable): 27.6" - 37" 
• Sights: Optic Ready with 1913 Picatinny rail 
• Muzzle Type: CMMG Zeroed Muzzle Brake 
• Finish: Cerakote in Black 
   

Features 

The gas piston system keeps carbon and heat out of the receiver, which simplifies cleaning compared to direct impingement. An adjustable gas block lets you tune cycling for different loads or when running a suppressor. The drop-in single-stage trigger is a step above a standard mil-spec trigger. Controls are fully ambidextrous. The folding stock makes the rifle compact for transport and storage. 
 

Usage 

The 7.62x39 cartridge with a 16.1-inch barrel covers home defense, hunting medium game, and general range use. The folding stock and adjustable length are practical for shooting from vehicles or confined spaces. At 7.70 lbs the rifle isn't ultralight, but the piston system's recoil reduction helps during extended range sessions.

The CMMG Dissent MK47 gets positive reception from shooters who want 7.62x39 in a compact, well-built AR package.

Build quality is consistently cited as strong. The piston system is the main attraction for many buyers — it runs cleaner than direct impingement and most owners report it reducing felt recoil noticeably, which helps with follow-up shots. The ambidextrous controls and folding stock are practical features that get real use, not just spec-sheet appeal.

7.62x39 caliber performance is well understood and appreciated for stopping power and widely available affordable ammunition.

Customization is another plus — the Picatinny rail and AR-compatible layout mean a wide accessory ecosystem. Optics, grips, and stocks all attach without hassle.

Price is the most common friction point. CMMG sits above budget AR builders, and some buyers feel the premium is steep relative to competitors. Those who buy it generally feel the quality justifies the cost; those who don't tend to go with cheaper piston-driven alternatives.

A few owners mention needing a brief break-in period, and some ammunition brands don't feed as reliably as others — testing different loads early on is recommended.