UM Tactical's R.A.G.E. TCS (Rapid Adjustable Gas Expulsion, Total Compensation System) is an adjustable AR-15 compensator system. It comes in a kit ($160) with 5 port washers (black or stainless), each washer has 3 ports allowing for up to 100 different configurations. This unique system allows shooters to dial in to their specific needs to manage felt recoil and muzzle rise.
And it looks super cool!