I am interested in putting an m11 severe duty muzzle brake by precision armament on my #17 krieger. The OD of my barrel at the muzzle is around .905 or close to it. The manufacturer of the m11 claims that my barrel is too large for the brake because the brake is .875. Should I look elsewhere for another brake. Id rather have a flush fitting. Btw the barrel has not been threaded yet. I just assumes I could have the muzzle turned down and threaded to match the threads but I dont want it to look strange when its finished.