Hi; I have a new set of Optilock rings & bases for Sako 75 III action. They are 30mm rings and are considered low and blued. I currently have them on my gun but never hunted or even fired the gun yet. They set too high for my 2.5x10x44mm scope. These look like a 50mm obj. would clear with no problem. Sako P.N. is S1300929 & S1700956 I'll take $100.00 for both the rings & bases, plus shipping fee to your location.