CMMG ZEROED RBB Brake 9mm 1/2x28 B-Dapter Suppressor Mount

CMMG ZEROED RBB Brake 9mm 1/2x28 B-Dapter Suppressor Mount

The CMMG ZEROED RBB Brake is a premium muzzle brake and suppressor mounting solution engineered for 9mm firearms with a 1/2x28 threaded barrel. Designed as part of CMMG's B-Dapter (Plan B compatible) mounting system, this muzzle device provides effective recoil and muzzle rise reduction when fired unsuppressed while serving as a quick and secure mounting interface for compatible suppressors.

Precision-machined from high-strength steel with a durable nitride finish, the ZEROED RBB Brake features a radial port design that requires no timing during installation. The tapered mounting interface helps create a secure seal that minimizes carbon buildup while providing reliable suppressor alignment for demanding range, competition, and tactical applications.

Specifications

• Type: Muzzle Brake / Suppressor Mount
• Brand: CMMG
• Model: ZEROED RBB Brake
• Manufacturer Part Number: 11DB055
• UPC: 840442510473
• Caliber: 9mm (.36 caliber maximum)
• Thread Pattern: 1/2x28
• Finish: Black Nitride
• Material: Steel
• Overall Length: 1.7"
• Added Length: 1.3"
• Compatibility: CMMG B-Dapter / Plan B Compatible Suppressor Mounts

Features

• Radial brake design helps reduce recoil and muzzle rise
• Compatible with CMMG B-Dapter and Plan B suppressor mounting systems
• Precision-machined tapered mounting interface promotes secure suppressor alignment
• No timing required during installation
• Durable black nitride finish resists wear and corrosion
• Designed for cartridges up to and including 9mm/.36 caliber
• Includes Rocksett thread locker for installation

Benefits

• Provides reliable recoil control when shooting unsuppressed
• Allows fast installation and removal of compatible suppressors
• Tapered interface helps reduce carbon lock and maintain consistent alignment
• Simple installation without timing shims
• Built for long-lasting performance in demanding shooting environments

The CMMG ZEROED RBB Brake is an excellent choice for shooters looking for a premium muzzle device that combines effective recoil reduction with a dependable suppressor mounting solution. Its robust construction, no-timing installation, and compatibility with Plan B-style mounting systems make it an ideal upgrade for modern 9mm carbines and pistol-caliber platforms.