Mounting Solutions Plus See-Through Scope Mount Base for The Ruger Mark I, II,III & IV - Picatinny (Silver)

Worked as described, it don't have a cut-out on it over the ejection port. Had planned on filling out a relief over the ejection port on my Ruger MKII but for the hell of it I installed it and figured I'd try anyway. To my amazement even-through it over hangs the ejection port a little it hasn't any effect on the ejected shells.

Easy to install and mounts secure.

Not made for a ruger hand gun

Works well for mounting a red dot. But the problem with the design is that it partially covers the ejection port. This partial obstruction causes an increase in jams. My Mark IV would have this problem maybe 1 time every 200 shots. With this rail its probably 1 out of 75 times.Not a deal breaker but be aware. Some other models on the market have a cut out to match the pistol and illuminate the problem.

It fits my Mark IV 22/55 well and the site I put on attaches firmly. I believe I purchased the silver as the black was out of stock with intents to paint it black, but it looks actually pretty nice on it.

Black was out of stock. I have the Target, which has a black barrel, so I just hit this with a can of black high temp (probably not needed, but I had it on hand) spray paint. perfect fitment, and I mounted a Bushnell TRS-25.

ordered this for my 22 pistol. It was easy to install and the easy with the supplied screws.

Mounted this on a Ruger MKIV hunter to house a Holosun micro holographic sight. Fits both perfect.