Monstrum Dovetail Red Dot Mounting Plate for Glock Pistols | for Non-MOS Version Glocks | Compatible with Glock 17 19 20 21 22 23 34 35 40 41 45 47

works well with gen 3 glocks

Just installed this on my G17 and I'm blown away by the fit, finish and ease of installation 20 minlocked up tight and my Holosun HS407C attached with no issues. bore sighted , tested and excellent quality looks great.The best part is I can reverse it if needed. No expensive slide cut or MOS slide needed. Recommend this item to anyone.Disregard 99% of negative issues reported most are installer related not the plate

Perfect fit! All the screws you might need included. Great deal.

I bought 2 of these for my Glock 17 and 22. The red dot sight on the 22 came off and hit me in the face after firing a couple rounds. I thought the screws were a little short and I had not used locktight so I bought longer screws and used blue locktight. I was hit in the face a second time. This time I realized the screw holes had stripped out. I don't trust the second plate will hold so I have ordered one made of a harder metal.

Does work well. Very well made an durable, Holds zero well. And puts together pretty easily with a nice fit and look.However. It does make the red dot sit high. So something to consider. But much cheaper than having a slide cut

Plate fit my receiver like a glove. I subsequently mounted my red dot sight to the plate with no issues. Quality appeared to be top notch and I had no issues with attaching it into my receiver sight slot and experienced no issues mounting the red dot sight (Bushnell) to the plate. I have no qualms about reordering should I have the need.

I was happy with the attention to detail in packaging and the overall appearance of quality.I had to do a slight bit of filing on the dovetail’s anodizing for it to fit nice and tight on my Glock’s slide with just a little light tapping. I did not mind the extra work to get the fitment just right. It makes for a much more secure mount.The problem was after everything was centered perfectly and the set screw was locktighted in place, when I was mounting the RDS to the mount, one of the screws would not start into the mount’s threads because of either too much anodizing or poor machining.So the whole thing had to be uninstalled and the I had to run a tap through the threads.From the amount of shavings, I have to conclude that it was poor machining. Not a deal breaker for me. Sh”t happens and you can’t inspect every single piece that gets manufactured at the price point these mounts are sold for. But, I did want to let anyone that does not have a minimum of mechanical skills to know that they may or may not encounter difficulties and need a hand with installation.Obviously, I can not comment on durability until I run through a couple of qualification sessions with it, and honestly this was only purchased by me to try and see if I wanted to go through the process of milling a slide or two on my pistols and use a RDS permanently.

Slides in left to right on G3C