Maybe getting one of the following Muzzle Brakes for my AR15. And if I like it, I will get it for my AR308. Anyone have tried one of the 2 muzzle brakes listed below? Or tried both? Which one do you favor and why? Do you have a picture of it on your rifle? Any feedback would be good, thanks...
SureFire - MB556K Muzzle Brake (http://www.surefire.com/MB556K-Muzzle-BrakeAdapter)

PWS - FSC556 (http://primaryweapons.com/store/pc/viewPrd.asp?idproduct=9&idcategory=6)
SureFire - MB556K Muzzle Brake (http://www.surefire.com/MB556K-Muzzle-BrakeAdapter)

PWS - FSC556 (http://primaryweapons.com/store/pc/viewPrd.asp?idproduct=9&idcategory=6)








i had a guy next to me put on a SECOND pair of eye glasses because the blast from the muzzle was pushing his first pair off 


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