Holosun HS507K X2 Red Dot Sight Multi-Reticle System
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
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Description
Reticle choice normally costs you size. The Holosun HS507K-X2 Red Dot Sight gets the Multi-Reticle System into a subcompact body — a button press between a precise 2 MOA dot, a fast 32 MOA circle, or the two together as a circle-dot — on an optic small enough for a slim K-cut slide such as the Glock 43X/48.
How It Compares
If you would only ever run the dot, the HS407K-X2 is the simpler option. The same sight with a green emitter is the HE507K-X2, and there is an auto-ranging alternative in the ACSS Vulcan. Our pistol red dot picks compare the subcompacts.
Ideal For
- The Glock 43X/48, and other K-cut carry slides
- Carry pistols that also see plenty of range time
- Shooters who want reticle options without a bigger optic
- Slim everyday-carry guns
Key Features
- Multi-Reticle System: 2 MOA red 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 HS507K X2 / MPN HS507K X2 / UPC 810047071211
- Reticle: Multi-Reticle System — 2 MOA red 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 HS507K-X2 red 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.
Technical Specifications
| Sight type | Open reflex |
|---|---|
| Dot colour | Red |
| Reticle | Multi-reticle |
| Footprint | RMSc / Holosun K |
| Fits | Pistol |
| Brand | Holosun |
| Type | Red Dot Sight |
| SKU | HS507K X2 |
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.
Product FAQs
How do the reticles switch on the Holosun HS507K-X2?
A button press on the HS507K-X2 moves between the 2 MOA dot, the 32 MOA circle, and both shown together as a circle-dot. That is the Multi-Reticle System packed into a subcompact body.
Should I buy the HS407K-X2 or the HS507K-X2?
The HS407K-X2 is the single-dot version, while the HS507K-X2 adds the Multi-Reticle System in the same size of body. Pick the HS507K-X2 if you want reticle options without a bigger optic.
Will the HS507K-X2 fit my slide?
The Holosun HS507K-X2 uses the Holosun K footprint, a modified Shield RMSc pattern. It suits slim K-cut carry slides such as the Glock 43X and 48.
Can I use the HS507K-X2 with night vision?
Yes, two of the 12 brightness settings on the Holosun HS507K-X2 are intended for night-vision use. The remaining 10 are daylight levels.
What battery does the Holosun HS507K-X2 take?
The HS507K-X2 runs on a single CR1632 that loads from the side, rated up to 50,000 hours. Shake Awake motion activation helps preserve that life.
How big is the HS507K-X2 window?
The viewing window on the Holosun HS507K-X2 measures 0.58 x 0.77 in, which is 15 x 20 mm. That keeps the optic small enough for slim everyday-carry guns.
Does the HS507K-X2 have Shake Awake?
Yes, the Holosun HS507K-X2 features Shake Awake motion activation. It pairs with the side-loading CR1632 battery rated up to 50,000 hours.
What is the click value on the HS507K-X2?
Windage and elevation adjust in 1 MOA clicks on the Holosun HS507K-X2. Total adjustment travel is plus or minus 30 MOA in each axis.
Is the Holosun HS507K-X2 magnified?
No, the HS507K-X2 is a 1x optic that is parallax-free with unlimited eye relief. The housing is machined from 7075 aluminium.
What comes in the box with the HS507K-X2?
The box holds the Holosun HS507K-X2 red dot sight, mounting hardware and a tool, and a CR1632 battery.
Is there a green version or a different reticle for the 507K-X2?
Yes, the HE507K-X2 is the same sight with a green emitter, and the ACSS Vulcan version offers an auto-ranging alternative reticle. The HS507K-X2 covered here is the red multi-reticle model.
How long does delivery take on the Holosun HS507K-X2?
Estimated UK delivery is 10 business days. It ships as genuine UK stock, so there are no import fees to pay on arrival, and 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.