Worked great for lowering my red dot on a Ruger mark IV 22/45 lite so I had enough adjustment. My only wish is they had flat screws instead of tapered heads to make sure my site is perfectly aligned. Works as it should and there is no issues.

The Shadow V3 is a great mount and does exactly what it’s supposed to do. Its design makes it very versatile. Mine is used in the RMR configuration and it holds solidly. I followed the Tandemkross video for installation and was able to have it mounted pretty easily. I di have to reference a third party video that actually showed the easiest method for installation of the set screws that are used at the corners for this configuration. Maybe Tandemkross will update their already good video to make it the best. Like the other items I’ve purchased from TK, the Shadow V3 mount is a high quality product at a reasonable price. Order, ship, receipt was seamless. TK has great customer service, if I need support, I know it’s going to be there.

I have a Ruger MK IV Target, MK IV Hunter, and a MK IV Competition. I purchased a Shadow Mount for each. Need I say more?

Made well. Fits the mark 4 perfectly. Did not fit the red dot perfectly. Placement lug holes minutly different. Still. It works.

Fit perfectly, awesome product, thanks!

I have the Shadow Mount v3 on all my Mark IVs with Holosun 407C's and it's a fantastic mount, with a very tidy footprint.

I used this mount plate on my Mark IV 22/45 to lower the optic to bore distance and it works great! Easy to install the plate on the pistol and easy to install the optic on the plate. It makes a huge difference in using the red dot on the pistol. Mounting the optic on the factory pic rail made the optic feel very high from the bore axis and awkward to use the red dot. This plate made a world of difference.

If there is one fault with Ruger .22 Mark IV handguns, it's when they include the long blocky pic rail on the rounded receiver and barrel. Put one on the Ruger Hunter and you've just uglied up a gorgeous gun. Most models come with excellent adjustable sights, but c'mon guys, the BIGGEST reason we buy a .22 is their phenomenal accuracy. That means if you want to shoot holes into holes at 25 yards, you need a red dot. Using the pic rail requires an additional mounting plate that adds even more height from the bore axis, not a good thing. Tandemkross has the ultimate solution with this perfect plate. It's minimum profile compliments the guns looks and keeps the height from bore axis low as possible. You get everything you need to mount any red dot except the tiny filler screws that you can buy from Ruger for four bucks. When you remove the pic rail, there are three holes on top of the receiver, and the mounting plate requires the two rear holes, so you need a filler plug for the front hole. (Important Note: The filler screws do not bottom out, so only install them until they are flush with the top receiver.) All of the Tandemkross install videos are excellent, so watch this one, but the installation is super easy. As they say, use Loctite Blue on all screws and you'll have a sight that stays put. Once you zero in, even your grandmother will shoot X-ringers all day.

Nice clean mount. Had all hardware needed to install.