scope mount height
I put a Nikon 3x 9x 40 on mine with the offset type from the Nikon p-223 and it worked good. a Leupold low was too low. I'd try the high's, not only so the scope will clear the bbl, but so you have the correct height of your cheek from the stock to the scope. if you can find a med and a high locally, buy both and return one.