Prophet river, that's where I got mine from couple years back.
https://store.prophetriver.com/leupold-fx-1-rimfire-4x28mm-fine-duplex-ret-matte-58680/
Ok, great! I'm likely about to order one soon, after a little bit more research.
Does anyone have any comments on the friction-lock adjustments on these, vs the click ones on other scopes like the vx-1 2-7x28? Does this thing reliably hold zero?