I have the following ortho's for sale.
25mm UO ortho in mint condition-bottom cap, no box-$50 shipped CONUS(SOLD)
18mm Kasai(same as UO)ortho-optics mint, small abrasion on top shoulder of plastic-no caps(Kasai's don't come with caps)-$45 shipped CONUS
12.5mm UO ortho in mint condition-caps and bolt case-$50 shipped CONUS
9mm Kasai ortho in mint condition-no caps, but have box(SOLD)
PayPal(add 3%)or money order.