Which one is more efficient and which one is "quieter"
(Accuracy International)
(Muscle Brake Thinking center one but maybe 2nd one from the right)
(Does anyone make this type of a muzzle brake or would it be a bad idea)
(Accuracy International)

(Muscle Brake Thinking center one but maybe 2nd one from the right)

(Does anyone make this type of a muzzle brake or would it be a bad idea)
