Well, there ya goWell, I had to dig it out. Turns out it's a 3x9x44, but you inspired me. I bought a set of high profile 30mm dovetail rings and I'll slap it on one of them. We'll see if I like either of them. I really liked the little Glenfield scope that's on the Marlin. It's small, non adjustable, light. I guess I'll go the other way though.