I have updated the web site and included my new muzzle brake, that I will be installing and selling. The brake is made by a local cnc shop. All the consentricity cut are made in one set-up on a cnc lathe so run-out is held to very tight tolerances. The second set-up is in a cnc mill where the 3 ports are cut. The surface finish on these brakes is excellent, Specs; 416SS 1" diameter 2.015" long 3 ports x5/16 wide .250 thru hole .100" thread relief 5/8 x 24 tpi I designed the brake with a running thread into the first port. This allows a clear view of the crown for inspection and cleaning. (as seen in the pics). I also included a thread relief in the brake so a relief will not need to be cut on the barrel thread tennon. I also widened the ports for what I feel will be more effective use of the 1" diameter dimension. This thing is not a magical new muzzle brake, I used design features that I liked from 3 other brakes, to produce one that met my requirements for effectiveness and ease of instalation. for more info go to; Center Shot Rifles (Pittsville, WI) and view the suppliers page. Brakes are in stock and ready to ship.