Looks cool, don't know if it does anything else - Tactical Solutions .900in Trail-Lite Compensator

Bought it because, well why not. It makes the TacSol barrel look cooler. As far as diminishing anything, well, its a 22. I can't tell. I have not cleaned it yet, but I imagine its a pain to clean. Have the one for the Trail lite barrel as well, and it was a mess to clean out. Maybe lesser on a rifle barrel, meaning I don't notice the fouling as far down. On the pistol barrel, fouling is thick out to the 3rd hole. Not as noticeable on the rifle which has many more rounds through it. If you want it, get it. Probably not going to notice a lot of difference in shooting, but it makes the barrel look more complete.