UTG Super Slim RDM20 Mount for Rear Sight Dovetail

This product was provided as part of the Vine reviewer program; please consider this an objective review. Some of the items can be reviewed by a simple one sentence. Sometime I am brutally honest and that it is only my opinion. I have nothing to gain or lose either way. This is my review on the UTG Super Slim RDM20 Mount for Rear Sight Dovetail The UTG Super Slim RDM20 Mount for Rear Sight Dovetail stands out as an innovative solution for shooters looking to enhance their firearm's reliability and versatility. This compact mount is specifically designed to fit rear sight dovetail cuts, enabling the attachment of a variety of red dot sights while maintaining a low profile. #### Design and Build Quality The UTG Super Slim RDM20 is crafted from high-quality aluminum, which ensures durability without adding excessive weight. Its sleek design keeps the profile low, making it an ideal choice for those who prefer a minimalist setup. The mount has a matte black finish, which is not only aesthetically pleasing but also helps reduce glare, enhancing performance in varied lighting conditions. #### Installation and Compatibility One of the standout features of the RDM20 mount is its ease of installation. It comes with all necessary hardware and requires minimal tools, allowing users to attach it quickly and efficiently to their firearm’s dovetail without professional assistance. The mount is designed to fit a wide range of rear sight cuts, providing versatility for different models. However, it’s always wise to verify compatibility with your specific firearm model before purchasing. #### Performance In terms of performance, the UTG RDM20 excels. Once mounted, it provides a stable and secure platform for red dot sights, minimizing any potential wobble that could affect accuracy. Moreover, the low-profile design keeps the sight line intact, ensuring that users can maintain their traditional sight alignment when necessary. The mount positions the optic at the perfect height for quick target acquisition—an essential factor during dynamic shooting scenarios. #### Additional Features The mount features a straightforward clamp mechanism that locks securely onto the dovetail, offering peace of mind that it will stay in place even under heavy recoil. Additionally, the lightweight construction does not interfere with the balance of the firearm, making it an excellent choice for competitive shooting and tactical applications alike. #### Conclusion In summary, the UTG Super Slim RDM20 Mount for Rear Sight Dovetail impresses with its robust construction, ease of installation, and reliable performance. It’s an excellent addition for anyone looking to enhance their shooting experience with a red dot sight while keeping things streamlined. While there are various mounts available on the market, the RDM20 proves to be a standout option, effectively combining functionality and style at an affordable price point. Whether you’re a competitive shooter or a recreational enthusiast, this mount is sure to elevate your setup.

This was purchased for a Glock 19 Gen 4, to mount the inexpensive UTG red dot sight. The Glock rear sight is removed, an insert installed into the dovetail slot, and the sight mounting base attached to the insert with two screws. This seems to be a solid platform, and my sight appears to be quite secure when mounted. A slight collar around each hole in the dovetail provides good indexing of the sight base. Mounting screws come with a bit of blue thread locker applied. The potential installation issue is that the insert is extremely tight in the dovetail slot - not much chance that the mount will drift sideways with use. This is similar to, or perhaps tighter than, a replacement sight. Fortunately I already had a sight pusher tool; I would not have been able to tap this insert into place with a mallet and drift punch. An alternative would be to file a bit off the insert, but it is small and may be difficult to work with. The "Ade Advanced Optics Glock Tactical Mini Dotx Sight Pistol Mount Base" (also sold on Amazon) may be a better option for those without sight pushers. My ADE dovetail insert for another Glock pistol fit loosely enough to be easily inserted by hand. The mounting base is slightly curved on the sides, conforming to a stock Glock slide to both capture the insert and to be self-centering. The base mounting screws tighten up the assembly and hold it in place. The UTG mount fits the ADE sight, and the ADE mount accommodates the UTG sight. This seems to be a somewhat "standard" pattern used by Burris, Docter, Vortex, and others. This type of mount can be very good for those who want to experiment with inexpensive red dots before buying higher-end sights and milled slides, though the sight will sit noticeably higher without slide milling. The UTG has been a high quality mount so far.

I bought this to mount a Vortex Viper on my M&P. It looks great, very sturdy, it's slimmer and build quality is much nicer than the ADE dovetail mount. Highly recommended if you're looking to try a pistol optic before committing the funds for an RMR and milled slide. Update: put about 200 rounds with this on, seems to have no problems holding zero. I put loctite on the mounting screws and I used the ones that came with the Vortex. Very happy with it so far.

I used this adapter plate to mount an ADE Advanced Optics red dot to an M&P shield and it worked like a charm. The ADE sight has a mount that caused the sight to droop backwards. The M&P shields slide is cut slightly lower behind the rear sight in comparison to the rest of the slide. This adapter plate is machined to take that step in the slide into account. It's an awesome mount, wish I could say the same for the sight.

Easy to install seems like pretty good material, but the holes are not drilled in the correct spot at least not for the red dot that I have

Fits nice and tight ,Sig P320 45cal

How is UTG going to produce a mount where the main screws are too short! The dovetail screws were applied without much trouble, but after setting my reflex into the 4 notches, I tried securing it in place with the supplied #6-48 screws only to find they don't reach far enough to bite down. And yes, my sight is the correct footprint.

Its functional. 4/5 stars only due to the height not really being "super slim" by any standards.

I can confirm the UTG Super Slim RDM20 mount does fit a Gen 5 Glock 17 and a Vortex Venom. A sight press is highly recommended as it is a tight fit.

Did not hold my scope on my gun

Looks good but I have not tried it on my firearm

Mounted UTG 4moa micro red dot on my G17 with this mount and it works awesome. Easy to install.

Fits great on my gen 2 17. For the price I 'm real happy with it.