Ade Advanced Optics Red Dot Adapter/Mounting Plate for Ruger Mark 1,2,3,4, I, II, III, IV, IV-Lite Mark 1,2,3,4 Handgun

Great fit and works well. Screws all fit properly. Minor effort to get the aluminum locator pins installed. I ended up holding them in the side of some needle nosed pliers and then pushing on the pliers while rocking the pin until it went all the way in. They do fit but don't expect to push them in with your finger. This is actually a good thing as they are not likely to fall out when the optics is not mounted. Perhaps this should be included in a "how to install" sheet? Still, great price and solid product.

Not sure if two different plates are shipping to different users, i saw where some are aaying its a perfect fit, some say the screws are too long. Sadly, my experience was the latter, the screws that came with my plate are too long and the factory screws dont seat properly in the plate to use them. Looking for another option because tis isn't going to work.

Mount came with multiple mounting screws. I used the shortest in the package and had no issue with them hindering the operation of bolt assembly. Removed the factory installed rail, installed this plate using the aforementioned shortest screws with a dab of Loctite blue. Easy to install. Precision milled for solid fit. Finish is even and looks good. Brings optic down significantly from rail mount for a more natural point of aim though not quite co-witness with most optics.

seems sturdy enough. I think ADE should be able to send correct length screws for this plate. It's for Ruger Mark series pistol and ALL mark series pistols take the same length screws.. Come on ADE... its not that hard.... I shouldn't have to go to Ace hardware in this instance

I like that it's a good quality product that fits the pistol well,however, the standard gun screws size of 6-48 x 1/4" are too long when installed and protrude into the bolt slide area. My reccomendation is to not drill the mounting screw holes in the plate that shallow so the screws don't go in as deep to interfere with the bolt. This pistol is a Ruger Mark IV and there's no other size screws available. I had to file down one screw to shorten it slightly.

Bought for a Ruger Mk IV 22/45 and went on super easy. Saw some reviews about the screws being weird so I just used the OEM screws when I took the picatinny off. Worked perfect with a Vortex Venom.

Fit perfectly. Came with three different types of screws for your application. I used the factory screws for my mark4 22/45

This Ade Adapter/Mounting plate does not allow co-witness of the iron sights on my Ruger Mark IV Target when using the Ade RD3-006A Green Dot sight. It's not even close to co-witness. Also, I'm having the same problem as almost everyone else with the length of the screws provided to mount the adapter plate, e.g. screws are too long, block the bolt movement, and need to be manually filed down.The original Mark IV Picatinny rail allows me to remove the optical sight when desired so I can use the iron sights. Using this adapter plate, I'm stuck with using the optical sights all the time, and the iron sights are not usable.I am interested to know if any user has successfully mounted this plate and optical sight to allow co-witness with the iron sights.