Well I have on order a DPMS riser (wich is on back order) and a set of Millet windage adjustable rings. But the more that I look at the LaRue mounts the more that I like them. I am looking at getting the spr-1.5 mount and rings. Does anyone have first hand experience with these? I am going to be mounting it on a DPMS LR-204 with a Leupold vx-III 6.5-20x40mm scope. Since this is my first AR I am not sure how high of a mount and rings is required to get my head down on it. Can you buy these mounts anywhere our just through LaRue? Any input would be great.