I mounted my 1-4x scope on my AR with the rail. It has an easy access screw to adjust the tension to the picatinny rail,it's QD and so easy to move, it's is aluminum so it doesn't add much weight...it's just tall enough to clear a standard A.R.M.S. flip up rear but not so as to add too much bore height...it stays put (i added locktight) even with abuse...I can save money on the rail and spend it on better rings...I'm very happy with it, I recommend it to anyone looking for a QD riser rail system
Pros: Well made, works
Cons: none
This review was written in the old system and had content requirements that are different than reviews written today.