Just bought my third MI 2 chamber .556 brake. Previously bought 2 of them is convert Communist Cali weapons to featureless, then last week bought a new upper and had to replace it's "dangerous" A2 flash hider also...so yeah, I'm now a 3-MI 2 chamber flash hider owner. Love them...not too loud on a 16 inch piston upper, mitigates recoil like no other in this price range...does the job without looking door breaking tacticool