The shark muzzle brake is a very aggressive looking unit. It definitely looks cool as hell on the end of the barrel, but the important question is “does it improve the gun?”
In my experience the brake does reduce recoil and muzzle climb at the expense of a LOT of noise and a bit of blowback. Now, noise and blowback isn’t bad to everyone, it all depends on what you like on your rifle. Beware of the points on this brake, it will get you if you let it.
Check out the videos and see what you think.