The CMMG Dissent MK4 is an AR-pattern semi-automatic rifle chambered in 22 ARC with a 16.1-inch taper-threaded barrel and a Titanium Cerakote finish. It has an M-Lok handguard and ships with a 10-round magazine. 
 

Key Specifications 

• Brand: CMMG 
• Model: Dissent MK4 
• Caliber: 22 ARC 
• Action: Semi Auto 
• Capacity: 10+1 
• Barrel Length: 16.1 inches 
• Color/Finish: Titanium Cerakote 
   

Detailed Features 

• 16.1-inch taper-threaded barrel 
• Titanium Cerakote finish 
• M-Lok handguard 
• 10-round magazine included 
• Black synthetic stock

Owners of the CMMG Dissent MK4 in 22 ARC appreciate the combination of the Dissent platform with the 22 ARC chambering, seeing it as a solid AR-pattern build for a newer cartridge. The Titanium Cerakote finish gets consistent praise for its appearance and corrosion resistance.

The 16.1-inch taper-threaded barrel is noted as suppressor-ready, which draws interest from owners who run cans. The M-Lok handguard gives enough real estate for accessories without adding unnecessary bulk. Some find the 10-round magazine limit restrictive in states without capacity restrictions, wishing for a higher-capacity option included from the factory.

CMMG's build quality on the Dissent line generally earns positive marks, though a subset of buyers feel the price premium over comparable AR-pattern rifles is hard to justify outside of the Dissent-specific ergonomic changes. Aftermarket support for 22 ARC as a platform is still growing.