Works well, not too loud - RISE Armament RA-701 AR Compensator

While I cannot directly compare this to other comps, or even to an A2 on the same gun, (this is all I have run on this gun) what I can say is that this installs easily and seems to work quite well.
I do smell the air from this comp, so I know it is working, and the gun shoots very smoothly without everyone else at the range being hammered with back pressure. I would suggest this is a very good comp without being the most aggressive. Get it - it works!