B-square rim fire semi-auto pistol mounts, mount ruger mki/mkii, blue 1008721 - B-square Rim Fire Semi-Auto Pistol Mounts - Mount Ruger Mk I/mk Ii Stainless 42878

Excellent alternative to drilling & tapping in order to mount a scope. Great value and Optics Planet ships orders lightning fast!
Pros: Installs easily, looks good and allows great selection of scope positioning. Alleviates the need to drill and tap.
Cons: Rear mount screw does not allow the use of the stock iron sights

This review was written in the old system and had content requirements that are different than reviews written today.