I'm looking into muzzle brakes for my 18" SPR and having a tough time settling on a specific choice. Is there a clear winner when it comes to muzzle brakes? Right now I'm trying to decide between the Surefire MB556K, Primary Weapons FSC556, JP Enterprises Benny Cooley, or the Miculek Comp. These seems to be the front-runners when it comes to brakes. From a pure cost standpoint, the JP or Miculek are the most appealing. I don't know if the Surefire is really worth the extra $$$ as I will never use it with a suppressor. Anyone have direct experience or 1-to-1 comparisons of these?