Good point. I don't have it yet but it'll be a sendero profile, 24" long, with 5/8-24. It's not the thread I ideally would want, but it's the only option on the prefit I'm getting. Of course I can add threads later but I honestly won't. The point of my looking into this is to see if I want the threads left off entirely. I'd rather have no threads and avoid the wallering out effect in the last inch of the barrel if my only brake options are going to be not a good fit for me.Tell us more about your rifle. Barrel profile and such. Some brakes just don't look right on thin, sporter barrels. Barrel profile will also determine max thread size which may eliminate some options as well.