Aluminum Scope Base Mount Adapter Dual Weaver/Picatinny & Dovetail Compatible with Ruger 10/22

Fine rail for dovetail and Weaver mounts, but the title is wrong, this is not picatinny compatible. I cannot mount my Romeo msr on this rail due to the spacing.

The notches are not equal spaced all the way down the rail. That make all mounts with two attaching screw not usable. And the notches where the attaching screws go into are not deep enough. Tried several brand scope mounts and none would work with this rail.

Bolts on works great had no trouble