Re: surefire muzzlebreak
They are very effective, that being said there are others that are even more effective. The muzzle brake also serves as an adapter for a surefire suppressor which is one of the best on the market. The muzzle brake will last for a very long time on various barrels and is very resiliant to muzzle blast erosion. It is also one of the easiest to remove which is accomplished with a 3/4" wrench.