CMMG Dissent BR4 .22 ARC — 16.1 in, 10rd, Magpul SGA

The CMMG Dissent BR4 is a modern sporting rifle chambered in .22 ARC that combines classic ergonomics with contemporary features. It uses a direct-impingement operating system and is built on CMMG’s Dissent platform with billet 7075 T6 aluminum receivers. The rifle is configured with a Magpul SGA Remington-870-pattern stock and an M-LOK compatible handguard for accessory flexibility. It ships with 10-round magazines and a Cerakote black finish.

Key Specifications

• The caliber is .22 ARC.
• The barrel measures 16.1 inches and is made from MT 4140CM SBN.
• The rate of twist is 1:7.
• The action is semi-automatic (direct impingement).
• The stock is a Magpul SGA Remington 870-pattern synthetic stock in black.
• The magazine capacity is 10 rounds and the rifle ships with two 10-round magazines.
• The muzzle device is a CMMG Zeroed muzzle brake with 1/2-28 threads.
• The upper receiver is DISSENT 7075 T6 aluminum and the lower is a BR4 billet 7075 T6 aluminum lower.
• The handguard is a CMMG EML15 M-LOK style for modular accessory mounting.
• The overall length is 38.1 inches.

Designed for economical range work, small-game and varmint applications, or high-volume training, the Dissent BR4 places modern controls and accessory compatibility on a classic-feel platform. Robust materials, M-LOK modularity and a compact 16.1-inch barrel make this rifle practical for shooters who want a versatile .22 ARC package without unnecessary complexity.