I have tried one of the brakes. With muzzle breaks you get somewhat of a compromise. Direct 90 degree ports are not as effective s the angled back ones. An APA *censored*, muzzle brakes and more, or my favorite Terminator breaks are farrr more effective. But they are louder and make the guy next to you annoyed. I don’t even shoot in brakes rifles without ear plugs in. If I am going to have a muzzle brake I take the most effective. MBM or Terminator.