
The Primary Arms ACSS Vulcan reticle is a very interesting breakthrough design for slide mounted red dots. Its key benefit is to find the red dot faster.
- The 250 MOA outer circle ring helps re-centering the eye to the 10 MOA center chevron tip reticle for faster dot tracking without increasing window size
- Chevron reticle has that fine aiming tip for pistol and rifle applications

In this guide, we gonna show how the Primary Arms ACSS Vulcan reticle on the Holosun 507C looks like at different eye relief distances as a pistol red dot sight, and also show some side to side comparison with a regular center reticle dot.
Let's check it out:
Holosun ACSS Vulcan Reticle Review
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The 250 MOA outer ring represents the position of the chevron tip when the optic is slightly off center. At an average arm length pistol sight picture, the outer ring guides the shooter's eye to re-center the reticle.
In other words, it eliminates the searching problem when the shooter loses the center dot on a micro pistol red dot. It also helps with faster sight acquisition.
If the shooter properly aligns the optic, then only the 10 MOA chevron tip is visible in the middle. The user can also turn up the brightness settings to be more visible.
Note: the user can also turn off the 250 MOA ring simply by holding the "-" for 3 seconds.
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ACSS Vulcan VS Regular Red Dot
The Trijicon SRO has a big window to find the 5 MOA dot, and the ACSS Vulcan reticle guides the eye to re-center the reticle. Both optics are great either way for shooters who have already mastered their sight picture acquisition.
In many ways, as the ACSS Vulcan reticle gets more popular, it will be exciting to see it on other pistol optics.
ACSS Vulcan Reticle On Long Guns
The multiple reticle system allows the user to cycle between two modes - ACSS center Chervon Reticle Only or ACSS Vulcan reticle + 250 MOA ring
When using the ACSS Vulcan reticle as a primary optic on a long gun, the ACSS reticle will be useful without the 250 MOA ring.
The chevron tip can be used for bullet drop compensation for various calibers.
The 250 MOA ring CANNOT be used the same way as the EOTECH's 68 MOA ring for holdover applications. (Maybe for shotgun spread pattern at a particular distance)
If you find this helpful when deciding which red dot sight to get, please check out more on content on our site.