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RMR Red Dot?

Posted on 2/8/26 at 2:05 pm
Posted by RetiredSaintsLsuFan
NW Arkansas
Member since Jun 2020
2307 posts
Posted on 2/8/26 at 2:05 pm
Te CC permit instructor mentioned that people with progressive lenses on their glasses would benefit from this type of red dot.

How do these mount onto the handguns? I am assuming the handgun would need some type of rail, but what do I know. I have a S&W M&P Shield 9mm and a SAR9 9mm. I searched and I did not see many handguns with a rail on the top.
Posted by NimbleCat
Member since Jan 2007
8955 posts
Posted on 2/8/26 at 2:24 pm to
Not a rail on top.
It’s a plate in the slide.

Just search optics ready pistol.

You will need a compatible plate/mount for your individual red dot.
This post was edited on 2/8/26 at 2:27 pm
Posted by GeauxGriff
Member since Dec 2022
47 posts
Posted on 2/8/26 at 2:26 pm to
RMR footprint optics mount directly onto a slide cut to fit it or use an adapter plate system. The original dot that popularized the mounting method is made by trijicon, and it is expensive. Lots of other companies make dots that use the RMR footprint now, though.

M&Ps do come in optic ready variants that come with a number of plastic adapters you can use, including RMR, or you can get an aftermarket metal plate.

If you don’t have an optic ready variant, you’re kind of SOL unless you have your slide milled or replaced. Might as well get another gun at that point.

Posted by A_bear
baton rouge
Member since Sep 2013
2466 posts
Posted on 2/8/26 at 5:04 pm to
quote:

How do these mount onto the handguns?

I’m not sure about all handguns, but I know for a Glock 43x, you have to have an adapter plate. They’re pretty pricey on top of the already pricey sight. You can, however, have the slide milled so that the sight fits without the adapter, but you either lose your rear sight, or it gets relocated to in front of the rmr. I’m pretty sure there are holosun sights that fit in the standard cut out. Might want to research that for your gun. Also, you should definitely shoot a gun with an rmr before buying one. I didn’t, and I spent somewhere around $700-$800, and ended up not liking it. Now it sits on a tacticool 45° mount on my AR. Here’s mine when it was on my 43x.
Posted by GRTiger
On a roof eating alligator pie
Member since Dec 2008
69733 posts
Posted on 2/8/26 at 5:51 pm to
quote:

people with progressive lenses on their glasses would benefit from this type of red dot.


What is a prgressive lens? He must be talking about the actual Trijicon RMR and not just the footprint if it has to do with vision.

Posted by RetiredSaintsLsuFan
NW Arkansas
Member since Jun 2020
2307 posts
Posted on 2/8/26 at 6:26 pm to
The progressive lens are in the eye glasses.

I checked my two handguns and neither one will work with a RMR red dot.
Posted by GRTiger
On a roof eating alligator pie
Member since Dec 2008
69733 posts
Posted on 2/8/26 at 6:31 pm to
I guess my question should have been what makes the RMR better for people with progressive lenses?

Posted by lsufan1971
Zachary
Member since Nov 2003
23939 posts
Posted on 2/8/26 at 6:47 pm to
quote:

I guess my question should have been what makes the RMR better for people with progressive lenses?


May have meant astigmatism.
Posted by RetiredSaintsLsuFan
NW Arkansas
Member since Jun 2020
2307 posts
Posted on 2/8/26 at 7:19 pm to
He made a comment that he had to tilt his head to find the sweet spot with iron sights.
Posted by finchmeister08
Member since Mar 2011
39926 posts
Posted on 2/8/26 at 7:45 pm to
Most optic cut slides for handguns vary from gun to gun.

Some are cut large to fit a wide range of different footprints.

Glock MOS is one. You pretty much need an adapter plate suited to the red dot you plan to mount.


RMR is a footprint style that Trijicon came up with. It’s probably the most popular.


Trijicon and Holosun both use these footprints.


Sig, Vortex, and Leupold use Delta Point Pro footprints.


When the instructor mentioned “RMR”, he was probably generalizing red dots and wasn’t speaking specifically to Trijicon.
Posted by captdalton
Member since Feb 2021
21456 posts
Posted on 2/8/26 at 7:48 pm to
If you have progressive lenses it means you are near sighted and farsighted. Many people who are farsighted have trouble seeing/aligning traditional iron sights. A lot of times the iron sights will be a bit blurry; front, rear, or both.

In general, as people get older, optics help them shoot more accurately than iron sights - whether on a long gun or handgun.

And like shooting anything, practice helps.
Posted by finchmeister08
Member since Mar 2011
39926 posts
Posted on 2/8/26 at 7:51 pm to
quote:

I know for a Glock 43x, you have to have an adapter plate.


My 43x has a direct mounted Vortex Defender Micro. No plate needed.

Both are made for Shield RMS/RMSc footprints.
Posted by captdalton
Member since Feb 2021
21456 posts
Posted on 2/8/26 at 7:53 pm to
RMR was initially a Trijicon red dot. Many other companies utilize the same mounting footprint. Now when people refer to RMR they are usually referring to the footprint, not the specific sight. The RMR footprint is designed for full size guns and is the most common footprint used for fullsize slides/optics. RMSc is the comparable footprint for compact slides and optics, and is the most common for compact slides/optics.
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