Holosun HE507K X2 Green Dot Sight ACSS Vulcan Reticle
Sale price
£379.99
Regular price £399.99
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Holosun HE507K X2 Green Dot Sight ACSS Vulcan Reticle
Sale price
£379.99
Regular price £399.99
At a glance
- Sight type
- Open reflex
- Reticle
- ACSS
- Footprint
- RMSc / Holosun K
- Fits
- Pistol
- Delivery within 10 business days
- Estimated delivery:
- 30-day returns
- UK-based specialist support
- Pay in 3 interest-free payments of £126.66 with Klarna
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Details
Description
Holosun HE507K-X2 Green Dot Sight is the ACSS Vulcan build of the subcompact K-series, with a green emitter. The Primary Arms ACSS Vulcan reticle normally turns up on far larger optics; here it fits a 0.58 × 0.77 in window on the Holosun K footprint, the modified Shield RMSc cut that slim carry slides use.
How It Compares
For the plain Multi-Reticle System instead, see the HE507K-X2 MRS. The same ACSS reticle with a red emitter is the HS507K-X2 ACSS. There is more to compare in green optics and pistol dot sights.
Ideal For
- Glock 43X/48, and other slim K-cut carry slides
- Everyday carry where size matters more than window area
- Shooters who read a green reticle quicker
- Anyone wanting ACSS on a subcompact
Key Features
- ACSS Vulcan reticle in green
- 12 brightness settings: 10 daylight plus 2 night-vision
- Shake Awake motion activation
- 1 MOA clicks; ±30 MOA of windage and elevation travel
- Side-loading CR1632, up to 40,000 hours
- 7075 aluminium housing; Holosun K footprint (modified Shield RMSc)
Technical Specifications
- SKU / MPN / UPC: SKU HE507K-GR-X2-ACSS / MPN HE507K-GR-X2-ACSS / UPC 810047072409
- Reticle: ACSS Vulcan Dot: 3 MOA green centre dot with 230 MOA outer circle
- Magnification: 1x, parallax-free, unlimited eye relief
- Viewing window: 0.58 × 0.77 in (15 × 20 mm)
- Brightness settings: 12 (10 daylight + 2 night-vision), Shake Awake
- Windage / elevation per click: 1 MOA
- Total adjustment travel: ±30 MOA (windage & elevation)
- Battery: 1 × CR1632, side-loading, up to 40,000 hours
- Housing: 7075 aluminium
- Footprint: Holosun K (modified Shield RMSc)
What's Included
- Holosun HE507K-X2 green dot sight with ACSS Vulcan reticle
- Mounting hardware and fitting 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 | RMSc / Holosun K |
| Fits | Pistol |
| Brand | Holosun |
| Type | Green Dot Sight |
| SKU | HE507K-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.
Help & guidance
Product FAQs
Which slides take the Holosun K footprint used by the HE507K-X2 ACSS?
The Holosun K footprint is a modified Shield RMSc pattern, the cut used by slim subcompacts such as the Glock 43X and 48, among others. The HE507K-X2 ACSS is built for those slim carry slides.
Should I get the ACSS Vulcan or the Multi-Reticle System HE507K-X2?
The Multi-Reticle version lets you cycle reticles with a button, while this one is fixed on the Primary Arms ACSS Vulcan design instead. The switchable option is the HE507K-X2 MRS.
Can I use the HE507K-X2 ACSS with night vision?
Yes. Two of the 12 brightness settings are night-vision levels, with 10 daylight settings above them.
How much adjustment does the HE507K-GR-X2-ACSS have?
Windage and elevation move in 1 MOA clicks, with plus or minus 30 MOA of travel each way. That applies to both windage and elevation.
What exactly is the ACSS Vulcan reticle on the HE507K-X2?
It is the ACSS Vulcan Dot: a 3 MOA green centre dot with a 230 MOA outer circle. The Primary Arms design normally turns up on far larger optics.
How many brightness settings does the HE507K-X2 ACSS have?
It has 12 brightness settings, made up of 10 daylight levels and 2 night-vision levels. Shake Awake motion activation is also included.
What battery does the HE507K-X2 ACSS use?
It uses one side-loading CR1632 battery rated for up to 40,000 hours. Shake Awake motion activation helps preserve it.
How big is the window on the HE507K-X2 ACSS?
The viewing window measures 0.58 by 0.77 inches, or 15 by 20 mm. The optic is 1x, parallax-free with unlimited eye relief.
What is the HE507K-X2 ACSS housing made of?
The housing is 7075 aluminium. It uses the Holosun K footprint, a modified Shield RMSc pattern.
What comes in the box with the HE507K-X2 ACSS?
The box includes the Holosun HE507K-X2 green dot sight with ACSS Vulcan reticle, mounting hardware and fitting tool, and a CR1632 battery.
Is the ACSS Vulcan K-series available in red?
Yes, the same ACSS reticle with a red emitter is the HS507K-X2 ACSS. The HE507K-GR-X2-ACSS uses a green emitter.
How long is delivery on the HE507K-X2 ACSS?
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.