You are familiar with silencers- aka suppressors? They make a weapon quieter when firing.
THAT is the exact opposite. It is an UN-silencer. Makes a gun MUCH louder when firing.
Reality- its is a muzzle brake, which is intended to reduce recoil. In the case of a .22 rifle, there IS no appreciable recoil. This gun is intended to separate $$$ from yo-yo's that got all of their gun edumaccacion from playing video games.
The people that take all the fun out of being a Moderator on an internet gun forum. Because I really can't kill them thru the computer. Yet.