This is the new Self Timing 5 Port. It came to design based on the input of some top PRS shooters who were using the non self timing version. They liked it more than any other brake out there for recoil reduction and the lack of concussion to the shooter.
Works for anything up to 6.5 CAL
The self timing version allows a guy to have one brake for all his rifles that are threaded 5/8×24.
30 second installation.
Amazing Recoil Reduction and No Concussion to the Shooter