I have a slightly used scout rail from PRI that I am no longer needing. Scope I was using this with is getting move to another rifle, so it's time to sell.
The aluminum rail lifts the mounting surface up .450" and allows you to extend over the delta ring 1.5".
I don't have my camera handy, so this is a pic from the PRI website:
New, these are $74 plus shipping. I'll let this one go for $68 with FREE shipping.