Comstock Armory Compact 9mm Muzzle Brake – 1/2×28
The Comstock Armory Compact 9mm Muzzle Brake (SKU: MBC-12-9) is a high-performance, suppressor-ready muzzle device designed for 9mm platforms with standard 1/2×28 threads. It provides a minimal footprint for the popular Plan-B style mounting system.Â
The MBC-12-9 is a “micro” brake engineered for shooters who want to keep their system as short and light as possible without sacrificing control.
- Exceptional Recoil Reduction: Tuned ports vent high-pressure gases to reduce muzzle flip and felt recoil, enabling faster follow-up shots on 9mm carbines and sub-guns.
- Suppressor Protection: Functions as a sacrificial baffle, taking the brunt of erosive gases and unburnt powder to extend the lifespan of your suppressor’s internal components.
- Universal Mounting Interface: Fully compatible with common .900″-24 adapters, including the Comstock LPA, Q Plan-B, and Rearden Atlas.
- Zero-Timing Design: The rotationally symmetric geometry allows for a direct-to-shoulder installation—no shims or crush washers are required for alignment.
- Durable Build: Precision-machined from 17-4 PH stainless steel for superior heat and corrosion resistance.





