Slide under the leaf, everything you need is included in the paçkageYou have me curious about this now. But how do you adjust the height on that? I don't see the elevator in the pic.
I had this same sight on a 454 Casull Rossi and I put one on my Roomate's 44 mag carbine. I figured out how to utilize differant parts of the sight picture for longer shots.
My old eyes love it