Question about muzzle brake on the Barrett 50cal

So i have a savage 308 bolt action with a threaded barrel. And I was looking for muzzle brakes. I saw a brake similar to what I think is called “the tank” that is on a 50cal only it was configured for a 308. Any idea what this muzzle brake is called or where I can find it. Like I said I don’t remember where I saw it and my bookmarks r gone

http://www.nokick.com/Pistol_Guide_Rods_s/97.htmLook at the smith enterprize muzzle brakes I have them on 223 and 308 rifles .They work and the price is right. I have them on 4 rifles [so far] ,these guys seem to have great prices and I bought one from them last week with great service. On the other brakes I bought came direct from Smith enterprises and the No kick.com was quicker shipping and cheaper.