Holosun HE507C X2 Green Dot Sight ACSS Vulcan Reticle Solar Failsafe
£399.99
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Holosun HE507C X2 Green Dot Sight ACSS Vulcan Reticle Solar Failsafe
£399.99
At a glance
- Sight type
- Open reflex
- Reticle
- ACSS
- Footprint
- RMR
- Fits
- Pistol
- Power
- Solar failsafe
- Delivery within 10 business days
- Estimated delivery:
- 30-day returns
- UK-based specialist support
- Pay in 3 interest-free payments of £133.33 with Klarna
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Details
Description
Instead of a menu of dots and circles, this Holosun HE507C-X2 Green Dot Sight carries the ACSS Vulcan reticle — a Primary Arms design built around a large green circle with a chevron at its centre. The open circle pulls your eye to the aiming point up close, while the chevron tip is the fine hold for distance, with range references built into the reticle itself.
How It Compares
If you would rather switch reticles yourself, the HE507C-X2 MRS is the standard version. The same ACSS reticle with a red emitter is the HS507C-X2 ACSS. Browse the rest of our green optics and pistol dot sights.
Ideal For
- Optics-ready pistols cut for the RMR footprint
- Shooters who want ranging built into the reticle
- Defensive and range work across mixed distances
- Those who pick a green emitter up faster
Key Features
- ACSS Vulcan reticle — green circle with a centre chevron
- Solar Failsafe — a solar panel backs up the battery
- Shake Awake motion activation
- Side-loading CR1632; up to 20,000 hours
- 7075-T6 aluminium, IP67; RMR footprint
Technical Specifications
- SKU / MPN / UPC: SKU HE507C-GR-X2-ACSS / MPN HE507C-GR-X2-ACSS / UPC 810047071365
- Reticle: ACSS Vulcan (green 10 MOA centre chevron with a deactivatable 250 MOA outer circle)
- Magnification: 1x, parallax-free, unlimited eye relief
- Viewing window: 0.63 × 0.91 in (16 × 23 mm)
- Emitter: Green Super LED
- Windage / elevation per click: 1 MOA
- Total adjustment travel: ±50 MOA (windage & elevation)
- Power: Solar Failsafe + side-loading CR1632, Shake Awake, up to 20,000 hours
- Housing: 7075-T6 aluminium, IP67
- Footprint: Trijicon RMR
What's Included
- Holosun HE507C-X2 green dot sight (ACSS Vulcan)
- Mounting hardware and tool
- CR1632 battery
Why buy from Red Dot Sight UK
A UK specialist in red dot sights, holographic sights and magnifiers from Trijicon, EOTech, Holosun and SIG Sauer — genuine optics, secure checkout and UK-based support.
The detail
Technical Specifications
| Sight type | Open reflex |
|---|---|
| Dot colour | Green |
| Reticle | ACSS |
| Footprint | RMR |
| Fits | Pistol |
| Power | Solar failsafe |
| Brand | Holosun |
| Type | Green Dot Sight |
| SKU | HE507C-GR-X2-ACSS |
Fitment
Compatibility
Mounting Footprint
Confirm the optic's footprint matches your firearm's cut or plate.
Rail Compatibility
Pair with a matching Picatinny mount for rifle and carbine platforms.
Always confirm your firearm's optic cut or rail matches the footprint before purchase. Our guide to red dot sight footprints explains how to match an optic to your firearm. If unsure, contact our team for fitment advice.
Complete Your Setup
Help & guidance
Product FAQs
What is the ACSS Vulcan reticle on the HE507C-X2?
The ACSS Vulcan is a Primary Arms reticle built around a large circle with a centre chevron and built-in range references. It is fast up close and precise further out.
What are the exact reticle dimensions on the HE507C-GR-X2-ACSS?
The ACSS Vulcan reticle is a green 10 MOA centre chevron with a deactivatable 250 MOA outer circle. The outer circle can be switched off if you prefer just the chevron.
Should I get the Vulcan or the Multi-Reticle System version?
The Multi-Reticle System lets you change reticle to suit the shot, while the Vulcan gives you one reticle that does both jobs at once with nothing to select. The standard switchable version is the HE507C-X2 MRS.
Which pistol slides will the HE507C-X2 ACSS fit?
It fits slides cut for the Trijicon RMR footprint. The HE507C-X2 ACSS is aimed at optics-ready pistols with that cut.
Is the chevron easy to use at speed?
Yes, because up close you can shoot the circle as a whole and the chevron tip is there when the shot needs more care. The open circle pulls your eye to the aiming point while the chevron tip is the fine hold for distance.
What battery does the Holosun HE507C-X2 ACSS take?
It takes a side-loading CR1632 battery rated for up to 20,000 hours. Solar Failsafe and Shake Awake motion activation work alongside it.
Does the HE507C-X2 ACSS have solar backup?
Yes, it has Solar Failsafe, where a solar panel backs up the battery. It also has Shake Awake motion activation.
What are the click values on the HE507C-X2 ACSS?
Windage and elevation adjust in 1 MOA clicks. Total adjustment travel is plus or minus 50 MOA for both windage and elevation.
How big is the window on the HE507C-GR-X2-ACSS?
The viewing window measures 0.63 by 0.91 inches, or 16 by 23 mm. The sight is 1x, parallax-free with unlimited eye relief.
Is the HE507C-X2 ACSS waterproof?
The housing is 7075-T6 aluminium rated to IP67. It uses the Trijicon RMR footprint.
What comes with the HE507C-X2 ACSS?
The package includes the Holosun HE507C-X2 green dot sight with ACSS Vulcan reticle, mounting hardware and tool, and a CR1632 battery.
How long will my HE507C-X2 ACSS take to arrive?
Estimated UK delivery is 10 business days. It ships as genuine UK stock, so there are no import fees to pay on arrival. Checkout is secured by Shopify.
No questions match your search.
Further reading
Guides picked for this optic - the brand range, the format, and how to set it up.
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Shipping, Returns & Warranty
Orders are dispatched from the UK. Full details, options and timescales are on our shipping policy.
If something isn't right, our returns policy explains how to arrange a return or exchange.
Every order is covered by our 30-day returns policy and your statutory consumer rights. Some products are also supplied with a manufacturer warranty; that cover is provided by the manufacturer rather than by Red Dot Sight UK and varies by brand.