If you have a new Glock Gen 6 model, this article is going to tell you exactly which Holosun optics fit, which plates you need to use, and how the new mounting system differs from previous generations.
The Glock Gen 6 mounting platform has been updated. It now comes with 3 adapter plates (#2, #3, and #4). This new system makes the older MOS footprint obsolete and changes which optics can mount directly to your slide.
The Red Dot & Green Dot Optics in this article will fit these Glock Gen6 models:
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Which Holosun Optics do we recommend for the Glock Gen6?
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Using Plate #2, Larger Optics |
Using Plate #4, Smaller Optics. To mount the 407K and 507K you will need this plate. The SCS Carry and EPS Carry don't need a plate. Using Plate #4, Larger Optic. |
Optic Plates Included with the Glock Gen6
Glock has simplified the mounting process by including three adapter plates in the box with every Gen 6 model. Each plate is designed for a specific footprint, but there are some technical nuances you need to know before mounting your Holosun.
Plate #2: RMR Footprint (Full Size)
This plate is designed for the standard RMR footprint.
- Compatible Optics: Holosun 407C, 507C, 508T, 509T, 507 Comp, and the full-size EPS (using its included RMR adapter).
- Required Screws: 6-32 (Included with the optic).
Plate #3: CMORE Footprint
This plate is designed for the CMORE footprint. There are no Holosun optics that utilize this specific mounting pattern.
Plate #4: DPP & RMSc Footprint
This plate is technically a Delta Point Pro (DPP) footprint, but it is also designed to accept true RMSc footprint optics. However, there is a catch for the Holosun 407K, 507K, 507K ACSS.
⚠️ The "K-Series" Fitment Warning: Even though the Holosun 407K, 507K, 507K ACSS, are often associated with the RMSc footprint, they will NOT mount directly to the Glock #4 plate.
The Reason: The recoil "nubs" (lugs) on the Glock #4 plate are physically too tall for the shallow recoil holes on the front of the Holosun K-series optics. If you try to force it, the optic will not sit flush.
How to mount a 407K, 507K on Gen 6:
To get these micro-optics to work, you must use an RMSc-to-K Adapter Plate. This thin shim sits between the Glock #4 plate and your optic, providing the correct lug height for a secure, flush fit.
- EPS Carry & SCS Carry: No plate needed, it fits directly onto the #4 plate.
- 407K / 507K: You must purchase a dedicated RMSc-to-K adapter plate here.
- Required Screws for Plate #4: M4 (Included with the optic).
Coming Soon: Direct Mount Plates
We know stacking plates isn't always ideal. We will have Direct Mount Plates for the Glock Gen6 available soon. These will allow you to mount optics like the Holosun 509T, K-Series, and Aimpoint ACRO. We will update this article with links as they are released!
Why do we recommend the Holosun Optics vs other options for Gen 6?
- They are affordable but not cheap.
- They are built sturdily with strong aluminum housings and glass.
- They have convenient features like Shake Awake and Side Mounted Batteries.
- They have a Limited Lifetime Warranty.
- They are reliable.
- They are waterproof.
⚠️ IMPORTANT: The Holosun SCS MOS Does NOT Fit Gen 6
If you are upgrading from a Gen 5, please note: The Holosun SCS MOS will NOT fit on the Gen 6. The SCS MOS was designed for the Gen5 MOS footprint which is now obsolete on the Gen 6 platform. For the Gen 6, you must use one of the included adapter plates mentioned below.
Best RMR Footprint Holosun Optics for the Glock Gen6 - Plate #2
Below are the best Holosun Red & Green Dot sights with an RMR footprint that you can mount on your Glock 17, 19, 45 Gen6. These will mount to your slide using plate #2 and the included Holosun Optic Screws.
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.
Best DPP Footprint Holosun Optics for the Glock Gen6 - Plate #4
Below are the best Holosun Red & Green Dot sights with a DPP footprint that you can mount on your Glock 17, 19, 45 Gen6. These will mount to your slide using plate #4 and the included Holosun Optic Screws.
8. Holosun SCS 320 Green Dot - Best Enclosed Emitter Recharging Option
*Note: To install this optic you will need to use the DPP #4 plate.
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 Gen6 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 Modified RMSc Footprint Holosun Optics for the Glock Gen6 - Use Glock Plate #4
*Note: To mount the 407K, 507K, 507K ACSS you will need to the use #4 plate and then use the RMSc-to-K plate. Otherwise you can file down the front pin set and remove the rear pin set - but file down at your own risk. The EPS Carry, EPS, and SCS Carry will fit directly onto the #4 plate.
9. 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.
10. Holosun EPS Red or Green 6MOA, 2MOA, MRS - Best All Around Closed Emitter
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.
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.
11. 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
12. Holosun 407K Green & Red Dot - Best Budget Option
*Note: To mount the K series, you will need to get the RMSc-to-K plate.
Buy the 407K At The Best Price
This is the most affordable micro optic Holosun makes and is available in a 6 MOA green or red dot.
If you are looking for a single dot optic that is very affordable and great for plinking then this might be the one for you.
The 6 MOA dot is a really nice size. It's big enough to pick up rather easily, but still small enough to be precise with.
It has an aluminum housing, side removable battery, manual brightness controls, shake awake, is IP67 waterproof, and 50,000hrs of battery life.
Read our full 407K review here.
13. Holosun 507K Green & Red Dot - Best All Around Option
*Note: To mount the K series, you will need to get the RMSc-to-K plate.
Buy the 507K At The Best Price
The next step up from the 407K is the 507K. This has all the same features like an aluminum housing, side removable battery, manual brightness controls, shake awake, IP67 waterproof, and long battery life but it also has Holosun's Multi Reticle System (MRS).
The MRS Reticle is a 32 MOA Ring with a 2 MOA dot. It's really cool when you look at it - it's similar to an EOtech's reticle if you've ever seen them.
The other cool thing is you can toggle the reticle holding down the "-" for 3 seconds. So if you wanted to, you could use just the 32 MOA Ring, the 2 MOA Dot only, or both the 32 MOA Ring + the 2 MOA Dot.
Read our full 507K review here.
14. Holosun 507K ACSS Vulcan Green & Red Dot - Best Speciality Option
*Note: To mount the K series, you will need to get the RMSc-to-K plate.
Buy the 507K ACSS Vulcan At The Best Price
Next on the list is the 507K ACSS Vulcan. This is exactly like the 507K except is has the ACSS Vulcan reticle. This reticle has a 230 MOA dotted outer ring and a 3 MOA center dot.
The purpose of this reticle is to help you find the center dot quickly if you are off center. To learn more about the ACSS Vulcan reticle check out our article here.
The dotted outer ring can be turned off by holding down the "-" button for 3 seconds.
The main advantage of the ACSS Vulcan reticle is to be able to find the center dot quickly when drawing the pistol.
All the features are the same as the 507K except for the reticle, and this is available in both red & green.
Read our full 507K ACSS review here.
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: Getting Your Gen6 Range-Ready
The Glock Gen6 is a significant step forward for the platform. Whether you’re opting for the massive window of the 507 Comp or the sleek, enclosed profile of the EPS Carry, the Gen6 can handle it, provided you have the right plate and screw combo.
To recap the most important points for your install:
- Check your screws: Use 6-32 for the #2 RMR plate and M4 for the #4 DPP/RMSc plate.
- Mind the "Nubs": If you are mounting a 407K, 507K, 507K ACSS, do not force it onto Plate #4. Use the RMSc-to-K adapter plate in addition to the #4 plate to ensure a flat, secure fit.
- Gen5 vs Gen6: Remember that the older SCS MOS only fits the Gen5 MOS footprint; Gen6 users should look toward the SCS 320 or SCS Carry if they want a SCS model.
Still have questions about your specific setup? We are here to help! Hit us up on our chat or send us a message. We want to make sure your optic is mounted perfectly the first time so you can get out to the range with confidence.
Thanks for reading!
