The CMMG Dissent BR3 is a semi-automatic AR-pattern rifle chambered in .308 Win with a 16.1-inch threaded barrel and an armor black finish. The receiver is machined from 7075-T6 aluminum and the rifle ships with a 10-round capacity. This variant is California compliant. 
 

Key Specifications 

• Brand: CMMG 
• Model: Dissent BR3 
• Caliber: .308 Win 
• Action: Semi Auto 
• Capacity: 10rd 
• Barrel Length: 16.1 in 
• Color/Finish: Armor Black 
   

Detailed Features 

• 16.1-inch threaded barrel 
• 7075-T6 aluminum receiver construction 
• Armor black finish 
• 10-round magazine capacity 
• California compliant configuration

Owners of the CMMG Dissent BR3 in .308 Win point to the 7075-T6 aluminum receiver as a build quality indicator that justifies the price. The armor black finish is consistently described as durable and even in coverage, holding up better than cheaper cerakote alternatives in owner reports.

The Dissent BR3's 16.1-inch threaded barrel is appreciated by suppressor users and those who want a compact .308 platform. Some owners note the slightly shorter barrel results in a more pronounced muzzle signature compared to longer variants, which is worth considering when shooting unsuppressed.

The 10-round capacity is functional for the platform and satisfies legal requirements in restricted states. California-compliant buyers are the primary audience for this configuration, and most report the compliance features do not significantly impact the shooting experience. The trigger draws average marks, with some owners upgrading it after the initial break-in period.