I have a set of blued high 26mm optilock rings that will fit a set of bases. Excellent condition, but one screw missing. £30 delivered.
1 set of medium height 26mm stainless rings that will fit a set of bases. One of the inserts is broken but it does not affect the useability of the item. Replacement inserts can be ordered for approx £4 if you really wanted to change it. £sold.