I have been considering a compensator for my M-4 style rifle in 5.56 but to me the recoil is not so great as to require it. If I am to spend money on something that not vital to my use of the rifle it needs to reasonable priced and it must work as advertised. This brings us to the question at hand. I have come across the Strike Industries Checkmate comp online and the price is reasonable. I have watched two video reviews of the product and in both cases it appears to work as advertised. This is the device in question Please watch this review and then I will get to the question. https://www.youtube.com/watch?feature=player_embedded&v=iQYGEitvInA Has anyone here installed one of these on an AR and if so what has been your experience with it?