The CMMG Dissent MK4 in 9mm Luger is a semi-automatic pistol-caliber carbine with a 6.5-inch barrel, 33+1 capacity, and an overall length of 14.7 inches. The Midnight Bronze Cerakote finish is distinctive, and the ambidextrous controls make it usable for either hand without modification. 
 

Key Specifications 

• Model: Dissent MK4 
• Caliber: 9mm Luger 
• Action: Semi-Auto 
• Barrel Length: 6.5 inches 
• Overall Length: 14.7 inches 
• Capacity: 33+1 rounds 
• Safety: Ambidextrous 
• Grip Material: Black Polymer 
• Weight: 4.60 lbs 
• Sights: Optic Ready 
• Finish Color: Midnight Bronze 
   

Detailed Features 

 
At 4.60 lbs with a 14.7-inch OAL, the Dissent MK4 is compact enough to handle in close quarters. The 33+1 magazine capacity means fewer reloads during range sessions or competition stages. Forged aluminum receivers and the Cerakote finish give it solid durability against wear and environmental exposure. 
 
The optic-ready design accepts red dots or compact scopes without any additional machining. Ambidextrous safety and controls are standard, not an afterthought add-on. 
 

Usage Scenarios 

• Home defense where the compact size and 9mm recoil are manageable. 
• Competitive shooting where the high-capacity magazine reduces stage reloads. 
• Training at the range where the light weight reduces fatigue over long sessions.

The Dissent MK4 in Midnight Bronze gets attention first for how it looks — the finish stands out compared to standard black or flat dark earth options. Beyond aesthetics, the 33+1 capacity and optic-ready setup are the two most cited functional advantages.

The price is the main point of friction in discussions. Some buyers feel the cost is high relative to other 9mm pistol-caliber carbines. A few users have raised questions about long-term reliability and how it holds up with sustained use, though these concerns are not universally reported.

The ambidextrous controls and light weight come up positively in most discussions, particularly from shooters who use it in dynamic courses or carry it for extended periods.