Holosun HE407K X2 Green Dot Sight 6 MOA Dot
At a glance
- Sight type
- Open reflex
- Reticle
- Single dot
- Dot size
- 6 MOA
- 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
Sized for slim carry slides, the Holosun HE407K-X2 Green Dot Sight takes the open reflex format down to K dimensions and keeps the reticle deliberately plain: one 6 MOA green dot, no menu. The bolder dot fits the job — on a Glock 43X or 48 you want the aiming point in the window immediately, not a fine dot to hunt for.
How It Compares
Add the switchable circle-dot and you have the HE507K-X2; keep it simple in red and it is the HS407K-X2. Moving to a full-size slide, the HE407C-X2 is the larger-bodied equivalent. Our pistol red dot picks set them side by side.
Ideal For
- Glock 43X and 48 and other K-cut subcompact slides
- Slim everyday-carry pistols where bulk matters
- Shooters who pick a green dot up faster
- Speed-first shooting that suits a 6 MOA aiming point
Key Features
- 6 MOA green dot, open reflex, single reticle
- 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 HE407K-GR X2 / MPN HE407K-GR X2 / UPC 810047071372
- Reticle: 6 MOA green 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 HE407K-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.
Technical Specifications
| Sight type | Open reflex |
|---|---|
| Dot colour | Green |
| Reticle | Single dot |
| Dot size | 6 MOA |
| Footprint | RMSc / Holosun K |
| Fits | Pistol |
| Brand | Holosun |
| Type | Green Dot Sight |
| SKU | HE407K-GR 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
What is the K footprint on the Holosun HE407K-X2?
It is a slightly modified Shield RMSc pattern that Holosun uses on its subcompact bodies. Our footprints guide helps you confirm what your slide is cut for.
Why does the HE407K-X2 use a 6 MOA dot on a small optic?
The K window is smaller than a full-size sight's, and a bold dot is quicker to locate in it, so you give up a little precision at distance to gain that. On a Glock 43X or 48 the aiming point lands in the window immediately.
Should I buy the 407K or the 507K?
The 407K is the single dot and the 507K adds the Multi-Reticle System. The HE407K-X2 keeps the reticle deliberately plain with no menu.
Does changing the battery on the HE407K-X2 mean re-zeroing?
No, the CR1632 loads from the side, so the sight stays put on the slide. Battery life is rated up to 50,000 hours.
How many brightness settings does the HE407K-X2 have?
It has 12 brightness settings, made up of 10 daylight levels and 2 night-vision levels. Shake Awake motion activation is also included.
Is the Holosun HE407K-X2 night vision compatible?
Yes, two of its 12 brightness settings are night-vision levels. The other 10 are daylight settings.
How big is the window on the HE407K-X2?
The viewing window measures 0.58 by 0.77 in, which is 15 by 20 mm. That is the K-sized open reflex format for slim carry slides.
What are the windage and elevation clicks on the HE407K-X2?
Each click moves 1 MOA in windage or elevation. Total adjustment travel is plus or minus 30 MOA in both axes.
Which pistols suit the Holosun HE407K-X2?
It suits the Glock 43X and 48 and other K-cut subcompact slides. It is aimed at slim everyday-carry pistols where bulk matters and speed-first shooting.
Is there a red version of the HE407K-X2?
Yes, the simple red equivalent is the HS407K-X2. Moving to a full-size slide, the HE407C-X2 is the larger-bodied version.
What comes in the box with the HE407K-X2?
The box contains the Holosun HE407K-X2 green dot sight, mounting hardware and a tool, and a CR1632 battery.
How long does UK delivery take for the Holosun HE407K-X2?
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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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.