I would need to understand your dislike of bolt on brakes. Installed they look almost identical to most screw ons, at least the tactical ones. (There are some screw ons that don't have clamping bolts but a great many do, particularly the easily removable ones.) By all research I have done they are as good at their job and as reliable as the screw ons if properly fitted and installed.
https://kahntrol.com/clamp-on-muzzle-brake/
These ones get universally great reviews. Personally I haven't tried them, I am just in the process of ordering one from Kahntrol after doing a LOT of research. I checked the Canadian made ones from Grizzly and Coretac but they are two to three times the price and neither of them will stand behind their products at all. Once it is shipped it is all yours, no refunds of any kind.
Witt -if you aren't happy for whatever reason they will buy it back. Even if it was your mistake and you measured wrong they will recut at no extra charge. Kahntrol - if they pooched it they will fix it. I chose Kahntrol because they don't seem to need the exact barrel measurements to work correctly and they don't have upper or lower holes. No bottom holes reduces dust signature and the brake design is good enough it eliminated muzzle flip without the top holes.