If you’re a 1911 fan, and a Sig Sauer Fan, then chances are you are the new or very soon to be new owner of the Sig 1911 X Full or Sig 1911 X Carry. This optics ready 1911 from Sig takes a lot of the great features of the 1911 and modernizes them for a package that appeals to most modern 1911 shooters.
The 1911 X Full and X Carry totes an optics ready slide, night sights, adjustable trigger, extended slide release, ambi safety, and more.
If you are looking for an optics ready 1911 there aren’t many on the market, so it’s nice to see this offering from Sig. In this guide we are going to tell you which Holosun Optics will fit the 1911 X Full and X Carry slide without any modification or adapter plates.
Which Holosun Optics do we recommend for the Sig 1911 X Full and X Carry?
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K Series Footprint Optics - these are smaller optics with smaller windows and less overhang: |
Quick Nav
- Pistols this article applies to
- Holosun Optics we recommend for the Sig 1911 X Full & X Carryl
- Holosun vs other brands
- What Optics Footprint is the Sig 1911 X Full & X Carry
- Best Modified RMSc Holosun Optics for Sig 1911 X Full & X Carry
- Holosun 407K - Best Budget Option
- Holosun 507K - Best All Around Option
- Holosun 507K ACSS Vulcan - Best Specialty Option
- Holosun EPS Carry - Best Closed Emitter Option
- Holosun SCS Carry - Best Solar Recharging Option
- 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 Sig 1911 X Full & X arry models does this apply to?
| This applies to all Sig 1911 XFull and XCarry models that have an optics ready slide. |
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 Sig 1911 X Full & X Carry?
The 1911 X Full and X Carry has a modified RMSc footprint a.k.a. K Series footprint. We are happy to see this footprint from Sig as it is one of the most compatible footprints for many of the most popular Holosun micro compact optics such as the K Series and EPS Carry series.
The slide cut on the 1911 X Full and X Carry has “screw posts” which act as recoil lugs, and a very tight slide cut which the optic will wedge into. We like the optics cut design very much.
Best Modified RMSc Footprint Holosun Optics for Sig 1911 X Full and X Carry
Below are the best modified RMSc a.k.a. K Series footprint Holosun optics you can mount on your Sig Sauer 1911 X Full and X Carry. These red and green dot sights will fit directly on the slide with no modification or adapter plates needed.
These optics all feature shake awake, bright reticles, clear glass, long battery life, and are sleek and slim so they will fit very nicely on the 1911 X Full and X Carry slide.
1. Holosun 407K Green & Red Dot - Best Budget Option
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.
2. Holosun 507K Green & Red Dot - Best All Around Option
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.
3. Holosun 507K ACSS Vulcan Green & Red Dot - Best Speciality Option
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 Vulcan Review here.
4. 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.
7. Holosun SCS Carry Green Dot - Best Solar Recharging Option
Buy the SCS Carry At The Best Price
The SCS Carry is similar to the EPS Carry in that it is an enclosed emitter, except it features Holosun's latest "Solar Recharging Technology".
It has an internal rechargeable battery with theoretical unlimited battery life. The battery has a 20K hour power reserve which is constantly being recharged. The optic charges the battery faster than it consumes. It has the MRS (multi reticle system) and is available in green dot only. You can use the 2 MOA dot, 2 MOA Dot + 32 MOA Circle, or 32 MOA Circle only.
This model doesn't have Shake Awake like the others, but recommend from Holosun, you just leave it on and it will stay on. It is constantly recharging from natural and artificial light sources. It does have a power off button if you wanted to turn it off.
This optic is a great option if you are looking for something super sleek, and where you never have to worry about batteries. Just turn it on and keep it on!
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
?As you can see there are quite a few red dot and green dot options to choose from for your Sig Sauer 1911 X Full.
You can't go wrong with any of them. Our recommendation is to decide your budget and intended use and go with the red or green dot you feel would best serve your needs.
If you have any questions please reach out to us.
Thank you for reading!
