This dovetail rail single ring mount is made especially for the PO 3.5x20 Compact Weapon Rifle Scope. It works great on any 1" short-tube scope where there is limited space for dual ring placement. It's a very solid mount that allows you great flexibility in placement of your scope and allows you to adjust the eye relief on short-tube scopes where there is generally little room for adjustment. The mount was designed for IZH-94MN and IZH-94 Taiga rifle but works on any other rifles with the same dovetail width. Adjustable Dovetail rail from 9 mm to 12 mm. Distance from the center of the ring to the dovetail is 36 mm. A great mount and one of our favorites.