I got a holographic sight and a flip-to-side magnifier bought separately from different sources for my flat top AR. The holographic centerline sits about 1/4 to 5/16 inch lower than the centerline of the magnifier. I've searched this forum for rail risers but no luck. I will start to look around the web for vendors supplying such accessories, but let me know if anyone has already found a source specifically for this height adjustment range (I've found some for 1/2 inch but that's too much height change). Thanks.


















































