Might as well park the car in the garage leave it running and close the garage door. - ATI Outdoors AR-10 .308 Model Shark Muzzle Brake w/ Crush Washer

Why does no one seem to mention how badly this thing smokes you out. After 6 consecutive shots at my local well ventilated indoor range the smoke in front of me was so bad i could no longer see my target nor could I breath. The people beside me weren't happy either. Not to mention all the carbon caked all over the front 6" of the gun. It literally turned the lense of my Olight black and it wouldn't wipe off. It was so thick that a mild solvent wouldn't remove it. I had to use bore cleaner. I consider myself lucky that it didnt ruin the light. The 223 / 5.56 has such light recoil I realy didn't notice a difference with the gun even after changing out the muzzle brake during my range time. Well... I did notice not getting choked by the massive smoke cloud. I bought it because it looked cool and as far as im conserned that is the only Pro.