FMK is an American manufacturer of various firearms. They are known for their affordable price point. They have a few optics ready guns which are the FMK 9C1 G3, FMK Elite, and FMK 9C1 G2 Elite USMC.
If you have any of these pistols and want to know the best Holosun Red & Green Dot sights you can put on it then keep reading.
In this guide we are going to tell you which Holosun Optics fit these pistols and the features and benefits of each.
Quick Nav
- Pistols this article applies to
- Holosun Optics we recommend for the FMK
- Holosun vs other brands
- What Optics Footprint is the FMK
- Best RMR Footprint Holosun Optics for the FMK
- Holosun 407C - Best Budget Option
- Holosun 507C - Best All Around Option
- Holosun 507C ACSS Vulcan - Best Specialty Option
- Holosun 508T - Most Durable Open Emitter
- Holosun 509 ACSS Vulcan - Best Specialty Closed Emitter
- Holosun 509T - Most Durable Closed Emitter
- How to choose between red or green reticles
- How to choose between open vs closed emitter
- How to decide which reticle style is best for you
- Conclusion
Which FMK models does this apply to?
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Which Holosun Optics do we recommend for the FMK?
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 FMK 9C1 G3, Elite, G2 Elite USMC?
The FMK Optics Ready pistols have a slide optic cut that will accept an RMR footprint optic. In this guide we will be recommending all the Holosun RMR Footprint optics.
Best RMR Footprint Holosun Optics for the FMK 9C1 G3, Elite, G2 Elite USMC.
Below are the best Holosun Red & Green dot sights you can mount directly on your FMK 9C1 G3, Elite, or G2 Elite USMC.
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 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.
5. 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.
6. 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.
7. 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. It comes with an RMR adapter plate so it will mount directly on your slide with the plate.
The deck height will be the same as the 507C when using the adapter plate but it’s something worth noting.
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.
8. 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.
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.
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
As you can see there are plenty of options to choose from for your FMK Optics Ready pistol.
We recommend you choose what you think best suits your needs and specific use case.
If you are trying to keep things budget friendly we recommend the 407C.
If you have any other questions, reach out to us on chat.
Thanks for reading!
