The CMMG Dissent BR4 is a California-compliant AR-style rifle chambered in 300 Blackout. It features a 14.50-inch black nitride threaded barrel and a coyote tan Cerakote aluminum Picatinny rail receiver. The barrel is fitted with a pinned and welded ZEROED SVD muzzle brake that brings the rifle’s overall length to 16.1 inches while maintaining compliance with NFA length requirements. The rifle ships with a Magpul SGA black synthetic stock and two Magpul 10-round PMAG magazines.
Key Specifications
- The caliber is 300 Blackout.
- The magazine capacity is 10+1 rounds.
- The barrel is a 14.50-inch black nitride threaded barrel.
- The muzzle brake is pinned and welded (ZEROED SVD) to achieve a 16.1-inch overall length.
- The receiver is a coyote tan Cerakote aluminum Picatinny rail receiver.
- The stock is a Magpul SGA black synthetic stock.
- Includes (2) Magpul 10rd PMAG magazines.
- This is an AR-style rifle configured for California compliance.
Designed for shooters who need a compact, compliant 300 Blackout platform, the Dissent BR4 pairs durable finishes and established Magpul components for immediate out-of-the-box use. The pinned-and-welded muzzle brake offers short-barrel handling while preserving the legal overall length of a rifle, making this a practical option for those prioritizing state-compliant performance and reliable ergonomics.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.
Related Videos:
