Holosun HE507K X2 Green Dot Sight Multi-Reticle System
£329.99
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Holosun HE507K X2 Green Dot Sight Multi-Reticle System
£329.99
At a glance
- Sight type
- Open reflex
- Reticle
- Multi-reticle
- 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 £109.99 with Klarna
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Details
Description
Everything the subcompact 507K does, with a green emitter behind it: the Holosun HE507K-X2 Green Dot Sight runs the Multi-Reticle System — a 2 MOA green dot, a 32 MOA circle, or the two as a circle-dot — in a body that still fits a slim K-cut carry slide like the Glock 43X/48.
How It Compares
Prefer one fixed green dot? The HE407K-X2 is the simpler sight. The same Multi-Reticle optic in red is the HS507K-X2, and the ACSS Vulcan swaps in an auto-ranging reticle. There is more in our green optics.
Ideal For
- The Glock 43X/48, and other K-cut carry slides
- Shooters whose eyes favour a green emitter
- Reticle options at carry-optic size
- Slim everyday-carry pistols
Key Features
- Multi-Reticle System: 2 MOA green dot, 32 MOA circle, or circle-dot
- 12 brightness settings — 10 for daylight, 2 for night vision
- Shake Awake motion activation
- Side-loading CR1632; up to 50,000 hours
- 7075 aluminium; Holosun K footprint (modified RMSc)
Technical Specifications
- SKU / MPN / UPC: SKU HE507K-GR X2 / MPN HE507K-GR X2 / UPC 810047071389
- Reticle: Multi-Reticle System — 2 MOA green dot / 32 MOA circle / circle-dot
- 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 50,000 hours
- Housing: 7075 aluminium
- Footprint: Holosun K (modified Shield RMSc)
What's Included
- Holosun HE507K-X2 green dot sight
- 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 | Multi-reticle |
| Footprint | RMSc / Holosun K |
| Fits | Pistol |
| Brand | Holosun |
| Type | Green Dot Sight |
| SKU | HE507K-GR X2 |
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
Should I choose the green or red version of the 507K X2?
Aside from the emitter the two are the same sight. Plenty of shooters simply find a green reticle quicker to pick up, and the red version is the HS507K-X2.
What does the Multi-Reticle System give me on the HE507K-X2?
It gives a button press between the 2 MOA green dot, the 32 MOA circle, and both shown together as a circle-dot. That is three sight pictures from one subcompact optic.
Should I buy the HE407K-X2 or the HE507K-X2?
The HE407K-X2 is the single green dot, while the HE507K-X2 adds the reticle options in the same subcompact body. Both fit slim K-cut carry slides.
What footprint does the HE507K-GR-X2 use?
It uses the Holosun K pattern, a modified Shield RMSc footprint. That is the cut on slim carry slides such as the Glock 43X and 48.
Can the HE507K-X2 be used with night vision?
Yes, it has 12 brightness settings, 10 for daylight and 2 for night vision. Shake Awake motion activation is also included.
What battery goes in the Holosun HE507K-X2?
It takes one side-loading CR1632 battery rated for up to 50,000 hours. The side-loading tray means you do not need to remove the sight to change it.
What are the click values and travel on the HE507K-X2?
Windage and elevation adjust in 1 MOA clicks with plus or minus 30 MOA of total travel. That applies to both windage and elevation.
How big is the HE507K-X2 window?
The viewing window measures 0.58 by 0.77 inches, or 15 by 20 mm. It is a 1x sight, parallax-free with unlimited eye relief.
What is the HE507K-X2 housing made from?
The housing is 7075 aluminium. It uses the Holosun K footprint, a modified Shield RMSc pattern.
What is included with the HE507K-X2?
The box contains the Holosun HE507K-X2 green dot sight, mounting hardware and tool, and a CR1632 battery.
How does the HE507K-X2 compare to the ACSS Vulcan version?
The ACSS Vulcan version swaps in an auto-ranging reticle, while the HE507K-X2 uses the switchable Multi-Reticle System. Both sit in the same subcompact K-series body.
When will my HE507K-X2 be delivered?
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.
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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.