CMMG Dissent BR3 .308 Win

The CMMG Dissent BR3 in .308 Win is a modern large-frame rifle designed to blend traditional controls with AR-style ergonomics for range use, hunting, and practical duties in jurisdictions with restrictive regulations. It offers platform compatibility with Remington 870-pattern stocks and Mk3 DISSENT upper groups for familiar handling and customization.

The rifle is finished in coyote tan and built around 7075-T6 aluminum receivers with a full-length Picatinny top rail and a proprietary 15-inch M-LOK handguard for accessory mounting. Ergonomic features include a reversible side charger, Magpul SGA Remington 870-pattern stock compatibility, and a Br3-specific single-stage trigger for a consistent feel.

Key Specifications

• The caliber is .308 Win.
• The barrel length is 16.1 inches.
• The operating system is Compact Action-Direct Impingement.
• The barrel material and finish are 4140CM with a nitride finish.
• The barrel twist rate is 1:10.
• The muzzle device is a CMMG ZEROED Muzzle Brake and the muzzle thread is 5/8 x 24.
• The gas block is an adjustable 0.750-inch unit for tuning suppressed or unsuppressed operation.
• The upper receiver is DISSENT Mk3 7075 T6 Aluminum.
• The lower receiver is Br3 Billet 7075 T6 Aluminum.
• The rifle ships with two 10rd Magpul PMAGs.

The CMMG Dissent BR3 combines large-frame .308-caliber performance with modern accessory compatibility and an adjustable gas system for tuning. Buy the CMMG Dissent BR3 .308 Win online today as a practical option for shooters seeking AR10-sized ergonomics and .308 performance.

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