Here at Freedom Gorilla, we appreciate innovation. Springfield Armory’s Echelon caught our attention with its multi-footprint slide, and now Ruger is following suit with the RXM. This new pistol underscores Ruger’s ability to engineer solutions for today’s modern customer.
A standout feature of the RXM is its exceptional modularity. A removable, serialized stainless steel FCI sits inside an interchangeable Magpul Enhanced Handgun Grip—giving you maximum flexibility and customization. On top of that, the RXM’s slide is designed for direct optic mounting of RMR, Delta Point Pro (DPP), and RMSc pattern optics. Co-witness-height steel sights with a tritium night front ensure you maintain a clear sight picture whether or not you choose to run an optic.
If you’re the proud owner of a Ruger RXM and wondering which Holosun red or green dot sights fit it best—and how to mount them—keep reading. In this guide, we’ll tell you all about the compatible Holosun optics, walk you through installation tips, and give you the info you need to make the best purchase decision possible. Let’s dive in!
Which Ruger RXM models does this apply to?
| All Ruger RXM Models |
Which Holosun Optics do we recommend for the Ruger RXM?
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Using RMR Pin Set
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Using RMSc Pin Set. To mount any of these optics you will need to use the plate that comes with the optic. Using DPP Pin Set |
Why do we recommend Holosun Optics vs other options?
- They are a good combination of high quality and affordability.
- They have the longest battery life and batteries can be changed without removing the optic.
- They come in red & green reticles with different sizes and styles.
- They are strong with 7075 aluminum or titanium housings and glass.
- They have convenient features like Shake Awake, easy to press brightness buttons, and Side Mounted Batteries.
- Some models have Solar Panels which will power the optic if the battery dies.
- They have a Limited Lifetime Warranty.
- They are reliable, water proof, and have a great track record
When you compare them to other options like Leupold, Trijicon, Crimson Trace, Burris, Bushnell, Aimpoint or others you will find the Holosun’s are more affordable or have more features, longer battery life, and a proven track record with millions of optics sold in the last 10+ years.
What optics footprint is the Ruger RXM?
Like the Springfield Echelon, the Ruger RXM uses a new footprint system that allows you to install multiple footprint optics. It has a series of screw holes and utilizes pins that you can insert into cut outs.
For the DPP (Delta Point Pro) Footprint optics you will use DPP Pin Set.
For the RMR Footprint Holosun Optics you will use RMR Pin Set.
Most of the Holosun Modified RMSc footprint optics will not fit without modification. If you use the EPS, EPS Carry, or SCS Carry you will need to use the plate that comes with each optics. Otherwise you will need to file down the pins to fit the 407K, 507K, and other K footprints. File at your own risk. An adapter plate is being made, we will update this section with a link once it is available.
What adapter plates exist for the Ruger RXM?
There are adapter plates in the works for this platform. Once we have them available this section will be updated with links.
Best DPP Footprint Holosun Optics for the Ruger RXM - DPP Pin Set
Below are all the Holosun Optics that have a Delta Point Pro footprint and will fit your RXM.
1. Holosun SCS 320 Green Dot - Best Enclosed Emitter Recharging Option
Buy the SCS 320 At The Best Price
The Holosun SCS 320 is an awesome new optic from Holosun that comes with a DPP (Delta Point Pro) footprint. This optic is an enclosed emitter and has a green MRS Reticle.
What's great about it, is that it uses Holosun's newest "Solar Charging Sight" (SCS) technology. It has an internal rechargeable battery that is constantly getting powered up by the solar panel on the top. The optic consumes power less than it produces it so it can last indefinitely.
The battery has a 20k hour reserve, which means at full charge if it never saw light it would last 20k hours.
This optic has auto brightness settings, is IPX8 waterproof, and fits the RXM Perfectly. It has perfect co-witness where you see enough of your irons but not so much that it obstructs the optic lens and dot.
Read our full SCS 320 review here.
Best RMR Footprint Holosun Optics for the Ruger RXM - RMR Pin Set
Below are the best Holosun Red & Green Dot sights with an RMR footprint that you can mount on your RXM.
These are larger optics that will have some overhang on the slide and which come with solar panels.
1. Holosun 407C Green & Red Dot - Best Budget Option
Buy the 407C At The Best Price
The most budget friendly option is going to be the 407C. The 407C has a 2 MOA dot only. The housing is aluminum.
If you are ok with having just a 2 MOA dot all the time, then the 407C is a great option.
It has shake awake, a side removable battery, solar failsafe with auto brightness or manual brightness modes, 10 daylight and 2 nightvision settings, and is IP67 waterproof.
Read our full 407C review here.
2. Holosun 507C Green & Red Dot - Best All Around Option
Buy the 507C At The Best Price
The Holosun 507C is very similar to the 407C except it has Holosun "MRS" reticle.
It's available in Red or Green reticles and the MRS (Multi Reticle System) lets you use a 32 MOA ring + 2 MOA dot, or it can be toggled to show only the 32 MOA Ring or just the 2 MOA dot by holding down the "-" button for 3 seconds.
It has shake awake, a side removable battery, solar failsafe with auto brightness or manual brightness modes, 10 daylight and 2 nightvision settings, and is IP67 waterproof.
Read our full 507C review here.
3. Holosun 507C ACSS Vulcan Green & Red Dot - Best Specialty Option
Buy the 507C ACSS Vulcan At The Best Price
The 507C ACSS Vulcan may pique your interest. It's just like the 507C except is has the ACSS Vulcan reticle. This reticle features a 250 MOA Ring and a 10 MOA chevron - sounds crazy right? Well it's crazy awesome! It helps new red dot shooter and experts alike, and allows for the most precision out of all optics mentioned here.
You can learn more about the ACSS reticle here but to summarize, the 250 MOA Ring helps you find the center dot quickly if you are off center and the 10 MOA chevron acts like a BDC reticle and also has a very precise point for precision work.
It's available in Red or Green reticles and if you wanted to turn the outside ring off you can by holding down the "-" button for 3 seconds.
It has shake awake, a side removable battery, solar failsafe with auto brightness or manual brightness modes, 10 daylight and 2 nightvision settings, and is IP67 waterproof.
Read our full 507C ACSS review here.
4. Holosun 507 Comp Green & Red Dot - Largest Window Competition Reticle
Buy the 507 Comp At The Best Price
Next on the list is the Holosun 507 Comp. This is one of the newest and most sought after optics from Holosun. Comp stands for "Competition" because this optic features a VERY large window, meant for competition shooting. It's the largest window in the industry.
The 507 Comp has some key differences vs the other optics listed here. First it has the C.R.S. which is the Complete Reticle System. This gives it many reticle configurations like a 2 MOA Dot only or a 2 MOA dot + 8 or 20 or 32 MOA Circle or just a 8 or 20 or 32 MOA Circle.
The 507 Comp also does not have a solar panel on it which means there is also no auto brightness setting.
It has a 7075 aluminum housing, shake awake, a side removable battery, manual brightness modes, 10 daylight and 2 nightvision settings, and is IP67 waterproof.
This is a large optic.
Read our full 507 Comp review here.
5. Holosun 508T Green & Red Dot - Most Durable Open Emitter
Buy the 508T At The Best Price
Next on the list is the Holosun 508T. It's very similar to the 507C except it has a stronger housing made out of titanium and a square window that's a little bigger.
The 508T's square titanium housing is made to give it extra durability, both from the shape and the material.
It's available in Red or Green reticles and they come with Holosun's Multi Reticle System, which is a 32 MOA ring + 2 MOA dot, and can be toggled to show only the 32 MOA Ring or just the 2 MOA dot by holding down the "-" button for 3 seconds.
It has shake awake, a side removable battery, solar failsafe with auto brightness or manual brightness modes, 10 daylight and 2 nightvision settings, and is IP67 waterproof.
Read our full 508T review here.
6. Holosun 509T Green & Red Dot - Most Durable Closed Emitter
Buy the 509T At The Best Price
The 509T is going to be the most heavy duty pistol optic you can buy from Holosun. It's an enclosed emitter and made with a titanium housing. The titanium is not to make it lightweight, it's to make it more durable.
The 509T comes with and RMR adapter plate
The enclosed emitter ensures that nothing can obstruct the view of the emitter and the lens, meaning water, dirt, lint or any other molecule will not get inside the optic. It will also make the optic easier to wipe off if it were to drop in mud or something like that.
The 509T is not going to be the lightest optic, but it will be the toughest.
It also has a nice big FOV and is filled with nitrogen which will help with fog-mitigation, just like a scope.
It's available in Red or Green reticles and they come with Holosun's Multi Reticle System, which is a 32 MOA ring + 2 MOA dot, and can be toggled to show only the 32 MOA Ring or just the 2 MOA dot by holding down the "-" button for 3 seconds.
It has shake awake, a side removable battery, solar failsafe with auto brightness or manual brightness modes, 10 daylight and 2 nightvision settings, and is IP67 waterproof.
Read our full 509T review here.
7. Holosun 509 ACSS Vulcan Red - Best Specialty Closed Emitter
Buy the 509 ACSS Vulcan At The Best Price
Similar to the 509T is the 509 ACSS Vulcan. It is an enclosed emitter optic, but it has two major differences. It’s made out of aluminum and it has the ACSS Reticle (10MOA Chevron + 250 MOA Outer Ring)
This optic is a good option is you need an enclosed emitter and must have the ACSS Reticle.
8. Holosun EPS Red or Green 6MOA, 2MOA, MRS - Best All Around Closed Emitter
*Note: To install this optic you will need to use the RMR pin set. Then use the RMR-to-K plate that comes with all of the Full Sized EPS optics. You could also slightly file down the front pin set so the optic isn't too high BUT do that at your own risk.
Last but in no way the least is the Holosun EPS. This is Holosun’s latest closed emitter optic and is made out of aluminum. It has a lower deck height than the 509T and 509. It comes with an RMR adapter plate but you can actually mount this to your RXM without the adapter plate.
These EPS models come in red or green and either a 2MOA, 6MOA, or MRS Reticle. The MRS Reticle has a solar failsafe and auto brightness mode, the others do not.
Read our full EPS Full Size review here.
Best Modified RMSc Footprint Holosun Optics for the Ruger RXM - Use the RMSc Pin Set
*Note: To mount any of these optics below you will need to the use RMSc pin set and then use the RMSc-to-K plate that comes with the optics. Otherwise you can file down the front pin set and remove the rear pin set - but file down at your own risk.
Below are the best Holosun RMSc a.k.a. K Series footprint optics you can mount on your RXM. These are smaller optics that will sit about flush with your slide.
1. Holosun EPS Carry - Closed Emitter Option - Best Enclosed Emitter Option
Buy the EPS Carry At The Best Price
The EPS Carry is very similar to the 407K and 507K except it has one major difference, it is an enclosed emitter optic. This means the laser emitter is protected by a hood. So dirt, mud, or debris will never get in the way of the emitter to distort the reticle. It also has the highest waterproof rating at IPX8.
There are 3 versions of the EPS Carry. The 2MOA, 6MOA, and MRS Versions
The MRS version has a solar panel on it which acts as a solar fail safe to power the reticle of the battery dies. It also gives you an extra auto brightness feature which can be toggled on or off.
Read our full EPS Carry review here.
2. Holosun SCS Carry Green Dot - Best Solar Recharging Option
Buy the SCS CARRY At The Best Price
The Holosun SCS Carry is the perfect optic for those who want a truly hassle-free experience. With its advanced solar charging system, you never have to worry about the battery—just mount it, turn it on, and forget about it. This optic is always on, automatically adjusting its brightness based on your surroundings, so it's ready whenever you are. If you’re looking for a set-it-and-forget-it solution, the SCS Carry has you covered.
The SCS Carry only comes in a green reticle has features the Multi Reticle System (MRS) like the 507K and the EPS Carry MRS.
Read our breakdown of the SCS Carry vs EPS Carry
Choosing between Red or Green Reticles
You may be wondering if you should get a red or green dot reticle. We get this question a lot so I am going to list a few bullet points for you to consider.
- Green reticles are less straining for the eye to see.
- Green reticles can help with astigmatism. If you have astigmatism you will see a blurry dot, we have been told by a few customers that Green dots help with their astigmatism, making the dot look more crisp than the red version.
- Green will not washout on backdrops like green grass, foliage, or green colors.
- In theory Green dots can have a longer battery life because Green is brighter, so for example a green dot on brightness setting 6 may be the same brightness as a red dot on setting 7 - which would save battery life.
If you want to learn more check out our full article about Red vs Green Dot Pros & Cons here.
Choosing between Open vs Closed Emitters
The simplest way we can break down open vs closed emitters is to look at how you plan on carrying the pistol. If you plan on being outdoors in the elements with rain, snow, sleet, then a closed emitter will be beneficial.
If you plan on carrying OWB most of the time and plan on being outside then closed emitter would be beneficial.
If you plan on carrying IWB or don't plan on being outside using your red dot in the pouring rain or heavy snow then an open reflex is fine.
Open reflexes will still work in the rain or snow but the closed emitter will give you extra peace of mind.
An open reflex can collect dust and debris on the inside of the reticle over time, so you'll want to clean it out from time to time. An enclosed emitter is easier to clean in this aspect.
To learn more about Open vs Closed emitters you can check out our Open vs Closed Emitter Guide here.
How to decide which reticle style is best for you
In this guide we covered a few different reticle options. If you need some help deciding which is best for you here are some of our thoughts on each.
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Conclusion
What's great about the Ruger RXM is that you can choose to run basically any Holosun red or green dot sight you please on it.
As you can see there are a lot of options. We recommend figuring out your primary use case for the pistol and choose the optic you feel best suits your needs.
We hope you enjoyed this guide and found it helpful. If you have any further questions please reach out to us.
Thank you for reading!
