Such an improvement over the traditional slant brake! Stuck this on a RAS47 and forgot about it. Put 1500 rounds down it in a training class, no issues whatsoever. It really does reduce felt recoil and makes staying on your front sight under stress more manageable. Most importantly, with the side cuts in it, dirt and debris have a much lower chance of clogging your muzzle and blowing up your gun. Also, its built like a tank and looks real good! THANKS MI !!!