This is a great mount. Secure and low to the receiver. Really helps for a nice low natural point if aim. The ability to use it with a wide variety of optics is really mice.

As always excellent parts with excellent service

Great mount. Keeps the dot mounted low and solid. Only problem I had was removing the rear sight. I cold not get a good grip to hold the slide tight enough to drive out the rear sight, I let a gunsmith knock the sight out so I don t damage anything beating on it.

This is the second of these mounts and I am pleased that it lowers the red dot sight by about 1/2 inch as opposed to using the picatinny rail.

Very low profile with the holosun 507k. Very nice design.

It seems like every time I buy a Tandemkross item, I want say it is the best thing I have done to my Ruger Mark IV. Yet again, this is another one of those times. I originally had the picatinny rail and a Vortex Venom mounted. I was quite pleased with it until a friend of mine got the Shadow Mount 2. I got one I like it a lot. The red dot is closer to the bore by at least 1/8" , which is the thickness of the Vortex mounting bracket that is no longer needed. I have not measured, but I believe the tandemkross S2 is about 1/16" lower than the picatinny rail . The stability of the red dot is better, and I no longer need to have the elevation maxed out to shoot at 10 yards. I was also able to mount the red dot farther forward which opens up my field of view, and gets the glass in front of the ejection port so there is less chance of dirt getting on it. The TK S2 is so much better than the other mounting plates because it accepts just about every red dot out there , and allows for mounting positions for the dot. You can put your S2 mount in front of the rear site and mount the red dot near the site, or forward near the ejection port. You can also remove the rear site and locate the red dot where the rear iron site was located. You also have the option of mounting it in the forward position. The appearance of the setup is much improved too. I tried to post a picture, but the website wont cooperate. Before I go, I want to mention that Tandemkross exchanged the S2 mount for my 2 year old picatinny mount and gave me a full credit on the exchange. Where do you get that kind of service anymore?

I like it! It lowers the dot and looks a lot cleaner than the factory rail.

Love the this mounting plate. Looks great on my Ruger and the instructional videos made installation easy.

This was exactly what I was looking for. Keeps the optic nice and low maintaining a much better height over bore compared to the stock pic rail. Excellent product.