Hey Freedom Gorillas, today we are going to talk about the Holosun 507C X2 ACSS Vulcan. This is a co-branded optic between Holosun and Primary arms which features the award winning ACSS Vulcan reticle which is a 250 MOA outer ring and a 10 MOA center chevron.
We understand that not having these optics in front of it can make it difficult to decide which to get. With this review article we aim to give you more information to help you make the right decision for your use case.
The red dot version is $319.99 and green dot version is $349.99.
Quick Nav
- TLDR
- Quick Stats
- Holosun 507C X2 ACSS Vulcan Reticles
- Holosun 507C X2 ACSS Vulcan Pricing & Models
- Holosun 507C X2 ACSS Vulcan Dimensions & Size
- Holosun 507C X2 ACSS Vulcan Footprint
- Holosun 507C X2 ACSS Vulcan Intended Use
- In the Holosun 507C X2 ACSS Vulcan Box
- Holosun 507C X2 ACSS Vulcan Screws & Batteries
- Holosun 507C X2 ACSS Vulcan Fitment Info & Adapter Plates
- Holosun 507C X2 ACSS Vulcan Review & Highlights
- Holosun 507C X2 ACSS Vulcan Downsides
- Holosun 507C X2 ACSS Vulcan Warranty
- Conclusion
TLDR
The Holosun 507C X2 ACSS Vulcan open reflex sight comes in red or green reticles and is perfect for beginners, competitive shooters, or EDC. The ACSS Vulcan reticle truly is a game changer and makes “finding the dot” easier for beginners or for anyone shooting in non-traditional positions.
The 507C X2 ACSS Vulcan has all the great features like the standard 507C X2 like shake awake, solar failsafe, auto + manual brightness, side removable battery, IP67 waterproof rating, and 7075 Aluminum housing, but it features the ACSS Vulcan reticle which has a 250 MOA outer ring to help you find the center dot, and has a 10 MOA chevron which gives the most precise .5 MOA aiming point and a built in BDC in which the bottom of the chevron is where a 9MM bullet would hit at 50 yards. To learn more about the ACSS Vuclan reticles check out our ACSS Vulcan Guide here.
| Buy the 507C X2 ACSS Vulcan Red Dot at The Best Price | Buy the 507C X2 ACSS Vulcan Green Dot at The Best Price |
Other quick stats and dimensions on the Holosun 507C X2 ACSS Vulcan are as follows:
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Holosun 507C X2 ACSS Vulcan Reticles
The 507C X2 ACSS Vulcan comes in red or green reticle versions and comes with the ACSS Vulcan Reticle which is a 250 MOA outer ring and a 10 MOA chevron center dot. The outer ring can be toggled on or off holding down the “-” button for 3 seconds.
The green version is slightly more expensive.
Holosun 507C X2 ACSS Vulcan Pricing & Models
The Holosun 507C X2 ACSS Vulcan comes in red or green reticles and has a 10 MOA Chevron and a 250 MOA outer ring.
You can learn more about red vs green dots here.
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$319.99 
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$349.99 
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Holosun 507C X2 ACSS Vulcan Dimensions & Size
- Deck height: 8.72MM
- Width: 1.24"
- Length: 1.78"
- Height: 1.14"
- Window Size: .91" Wide, .63" Tall
- Weight: 1.5 oz
Holosun 507C X2 ACSS Vulcan Footprint
The Holosun 507C X2 ACSS Vulcan is an RMR footprint optic. This means it will fit on any RMR footprint slide or adapter plate.
Holosun 507C X2 ACSS Vulcan Intended Use
The Holosun 507C X2 ACSS Vulcan is an RMR footprint optic and a regular sized pistol red dot. This means it is intended for use on any pistol with an RMR footprint or RMR adapter plate. Most of the time this means the pistol will be a full size or compact such as a Glock 19 MOS or a S&W M&P 2.0. Make sure you know what footprint your gun is. The 507C X2 ACSS Vulcan is not intended for and usually will not fit any micro compact pistol like a Glock 43X MOS or Sig P365. For the smaller pistols you want to look at the 507K X2 ACSS Vulcan this is because the smaller micro compact pistols usually come with a different footprint like the RMSc or K series footprint.
The 507C X2 ACSS Vulcan can also be used as a rifle optic, PCC optic, or backup scope optic if you get an "RMR" picatinny or offset adapter found here.
In the Holosun 507C X2 ACSS Vulcan Box
When you open the Holosun 507C X2 ACSS Vulcan this is what you will find in the box:
- 1x CR1632 Battery (installed inside the optic)
- Holosun Warranty Card
- Holosun Battery, Screws, & Adjustment Tool
- Holosun Manual
- Primary Arms Manual
- 4x 6-32 Screws (short), 4x 6-32 Screws (long)
- 507C X2 ACSS Vulcan Optic
- Lens Cloth
Holosun 507C X2 ACSS Vulcan Screws & Batteries
Here is an up close photo of the Holosun 507C X2 ACSS Vulcan Screws, Battery, and Tool that come in the box. The battery will be pre-installed in the optic.
Holosun 507C X2 ACSS Vulcan Fitment Info & Adapter Plates
Below is information on mounting the Holosun 507C X2 ACSS Vulcan Reflex Sight on different pistols. Some pistols require adapter plates to make it fit. The table below is for Optics Ready pistols only. If you do not have an optics ready pistol and still want to mount a 507C X2 ACSS Vulcan to your platform, you can get a dovetail mount which replaces your rear dovetail sights. Find all our dovetail mounts here.
*Note: Clicking on the pistol name below will take your to our fitment guide which explains more about each platform.
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Anderson Manufacturing
Arsenal Democracy
Bul Armory
CZ
FN
Heckler & Koch
Kimber
Palmetto State Armory
Shadow Systems
Smith & Wesson
Staccato 2011
Taurus
Tisas
Wilson Combat
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Arex
Beretta
Canik
FMK
Glock
IWI
Nighthawk Custom
Sig Sauer
Springfield Armory
Stoeger
Walther
Zev
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Don't see your model listed? Check out our Fitment Guides Here.
Holosun 507C X2 ACSS Vulcan Review & Highlights
The Holosun 507C X2 ACSS Vulcan has a bit of a cult following and for good reason. The ACSS Vulcan reticle - designed by Primary Arms, gives you more benefits over a standard reticle.
In person, when you are looking at the optic with the center chevron dead center you barely see the 250 MOA outer ring. The outer ring is made to act like an “aim assist” so you can find the “center dot” as quickly as possible.
If you are new to red dot shooting “finding the dot” is something you have to practice. New red dot shooters many times will bring the pistol up in front of them, look at the red dot sight and not see the dot on the window. That’s because you have to get your alignment correct. This can be accomplished with practice and muscle memory, however the ACSS Vulcan reticle addresses this with its large 250 MOA outer ring.
When your “center dot” is not centered, you will see part of the 250 MOA outer ring. Once you see it, you quickly understand how you need to adjust your grip to see the center dot. In our experience this is great for new red dot shooter, competition shooters, and anyone who wants the added security of having that “aim assist” to find the dot. We are told by competitive shooters that the reticle helps when then are shooting from odd positions such as leaning to the side or laying sideways on the ground.
In our experience the ACSS Vulcan reticle is also helpful if you are trying to clear rooms or moving while keeping your pistol drawn in front of you.
The other great thing about the 507C X2 ACSS Vulcan is that the center dot is a 10 MOA chevron. The 10 MOA chevron has 2 main benefits. First is that the tip of the chevron is .5 MOA which makes it the most precise reticle on the market. Second is that the bottom of the chevron acts as a BDC reticle, it’s where your 9MM bullet would hit at 50 yards.
There is a third benefit and that is that some people report the 10 MOA chevron helps with their astigmatism since it’s not a dot, but crisper lines. We can’t really comment on if that will help you or not, as everyone’s astigmatism is different, but it is worth noting.
The Holosun 507C X2 ACSS Vulcan has all the same features as the standard 507C X2 like shake awake, auto and manual brightness, solar failsafe, 7075 T6 aluminum housing, IP67 waterproof ratings, and side removable battery tray.
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Holosun 507C X2 ACSS Vulcan Downsides
The only real downsides of the 507C X2 ACSS Vulcan is that it’s more pricey than then 507C X2 and also the battery life sufferers a bit due to it’s reticle.
Primary arms rates it as up to 20,000 hours, so we would guess maybe 5K hours with the 250 MOA outer ring enabled, and 20k hours with just the center chevron at setting 6.
Holosun 507C X2 ACSS Vulcan Warranty
Since the Holosun 507C X2 ACSS Vulcan is a co-branded optic with Primary Arms, it actually falls under the Primary Arms warranty.
Primary Arms has a lifetime warranty on all their optics. So if you have any issues at all you can contact Primary Arms and they will fix it.
Also when you purchase from Freedom Gorilla, if you have an issue within 30 days we will replace the optic for you free of charge.
Conclusion
The Holosun 507C X2 ACSS Vulcan is an awesome pistol optic. If you are someone who values practicality and utility, then this is the optic for you. The features on the 507C X2 ACSS Vulcan are class leading, and the ACSS Vulcan Reticle is probably the most well thought out pistol optic reticle on the market.
If you plan to use this for duty, edc, or competition it will serve you very well.
If you have any further questions please reach out.
Thanks for reading!
