The Thunder Beast CB "Compact Brake" for use on Thunder Beast Arms CB series suppressors. Compatible with the Dominus CB, Ultra 9, Ultra 7, and Ultra 5 (includes both the 30 Cal and 6.5 variants). The CB mount is also compatible with older TBAC models, such as the 30CB9, 30CB7, 30CB5, and 223CB. The brake has an Ionbond DLC Finish (Monocolor Dark Grey) and peel washer is included for timing the brake.

The 223CB only comes in 1/2-28, which has a .223 aperture and will not work on larger calibers.