The CMMG Dissent BR4 delivers straight-pull bolt action performance in a modern sporting rifle platform optimized for California compliance. This innovative design eliminates the traditional gas system, creating a reliable manual action that maintains the familiar AR-15 ergonomics while meeting restrictive state regulations.
What Makes This Different
Unlike conventional gas-operated systems, the Dissent BR4 uses CMMG's straight-pull bolt technology that cycles manually with a simple pull-push motion. This design reduces moving parts compared to traditional bolt actions while maintaining consistent lockup and extraction. The system delivers sub-MOA accuracy potential with match ammunition and requires no gas block tuning or adjustment.
Key Features
- Straight-pull bolt action eliminates gas system complexity and maintenance
- 14.5-inch 4140 chrome moly barrel with 1:7 twist rate for heavy bullets
- Coyote Tan Cerakote finish provides superior corrosion resistance
- Magpul SGA stock offers adjustable length of pull and cheek riser
- Zeroed single-stage trigger with crisp 4.5-pound pull weight
- Standard AR-15 magazine compatibility with 10-round capacity limit
- Forged aluminum upper and lower receivers with Type III anodizing
The straight-pull action cycles faster than traditional bolt rifles while maintaining precision accuracy for competitive shooting and hunting applications. Weather-sealed bolt extension prevents debris infiltration during adverse conditions. The familiar AR-15 controls and ergonomics reduce training time for users transitioning from semi-automatic platforms.
Technical Specs
- Caliber: 223 Remington/5.56 NATO
- Barrel Length: 14.5 inches
- Overall Length: 35.5 inches (stock collapsed)
- Weight: 7.2 pounds (unloaded)
- Twist Rate: 1:7 inches
- Magazine Capacity: 10 rounds (CA compliant)
- Receiver Material: Forged 7075-T6 aluminum
- Finish: Coyote Tan Cerakote
- Stock: Magpul SGA adjustable
- Trigger: Zeroed single-stage drop-in
- Country of Origin: USA
This platform addresses the need for accurate, reliable performance within California's regulatory framework. The combination of proven materials, precise manufacturing, and innovative action design creates a versatile rifle suitable for multiple shooting disciplines.