HolosunGreen Dot Sight
Holosun HE507K X2 Green Dot Sight Multi-Reticle System
- Reticle
- green Multi-Reticle System — selectable 2 MOA dot, 32 MOA circle,...
- Window
- 0.58 × 0.77 in (14.7 × 19.6 mm) viewing window
- Footprint
- Holosun K (RMSc) footprint, for RMSc-cut slides and RMSc-pattern plates
- Illumination
- 12 brightness settings — 10 daylight and 2 night-vision compatible
In stock — 7–10 business day delivery
Tracked delivery, estimated 7–10 working days
Want to know when it's back? Email us and we'll let you know
Multi-buy savings
Mix any optics and lights — applied automatically
- 5%2 items
- 10%3 items
- 15%4 or more
Applied automatically at checkout — no code needed. Accessories such as tailcaps, switches and mounts aren't included.
- Shipped from the UK with tracked delivery
- 30-day returns on unused items
- Warranty support — contact us first
Delivery
Every order is shipped from the UK with tracked delivery. Estimated delivery time is 7–10 working days, and you will receive tracking details by email as soon as your order is on its way.
Returns
Unused items in their original packaging can be returned within 30 days. Email info@opticstrader.co.uk first and we will confirm the return details.
Warranty
Every product is new and boxed. If anything goes wrong, contact us first and we'll help with a manufacturer warranty claim where one applies.
The Holosun HE507K X2 Green Dot Sight (HE507K-GR-X2) is a 1x open-reflex pistol green dot sight on the Holosun K (RMSc) footprint, with the Multi-Reticle System — a 2 MOA green dot, a 32 MOA circle, or both together as a circle-dot — behind a 0.58 × 0.77 in (14.7 × 19.6 mm) window, in a 7075-T6 aluminium housing.
It is the green-emitter version of the K-series circle-dot optic. The 32 MOA circle is the fast reference at close range, the 2 MOA dot is the precise one, and a green emitter reads brighter to the eye than red at the same output. Shake Awake sleeps the reticle when the pistol is idle and wakes it on movement, and the X2 generation adds Lock Mode to prevent accidental setting changes.
How it compares
For a single green aiming point on the same footprint, the HE407K X2 green dot sight drops the circle. The HE507K X2 with the ACSS Vulcan reticle replaces the Multi-Reticle System with a fixed chevron and ring. The red version is the HS507K X2 red dot sight, and on a full-size slide the HE507C X2 green dot sight carries the same reticle on the RMR footprint with Solar Failsafe. Browse all RMSc footprint red dot sights and the full Holosun green dot sight range.
Ideal for
- Slimline and subcompact pistols with an RMSc-cut slide
- Section 1 long-barrelled pistols and revolvers held on a UK firearm certificate
- Shooters who pick up a green reticle faster than red in woodland or low light
- Airsoft GBB compacts and range training pistols
Key features
- Reticle: green Multi-Reticle System — selectable 2 MOA dot, 32 MOA circle, or circle-dot
- Window: 0.58 × 0.77 in (14.7 × 19.6 mm) viewing window
- Footprint: Holosun K (RMSc) footprint, for RMSc-cut slides and RMSc-pattern plates
- Illumination: 12 brightness settings — 10 daylight and 2 night-vision compatible
- Electronics: Shake Awake motion activation with last-setting memory
- Controls: Lock Mode prevents accidental brightness and reticle changes
- Battery: side-loading CR1632 tray, up to 50,000 hours of runtime
- Housing: 7075-T6 aluminium, open-reflex construction
| Optic Type | Open reflex pistol green dot sight, 1x (non-magnified) |
| Reticle | Multi-Reticle System — 2 MOA dot / 32 MOA circle / circle-dot |
| Reticle Colour | Green |
| Magnification | 1x, parallax-free |
| Window Size | 0.58 × 0.77 in (14.7 × 19.6 mm) |
| Footprint | Holosun K footprint (RMSc pattern) |
| Illumination | 12 brightness settings — 10 daylight / 2 night-vision compatible |
| Battery | CR1632 in a side-loading tray, up to 50,000 hours |
| Power Management | Shake Awake motion activation; X2 Lock Mode |
| Click Value | 1 MOA per click |
| Parallax | Parallax-free |
| Eye Relief | Unlimited (non-critical eye relief) |
| Housing | 7075-T6 aluminium |
| MPN | HE507K-GR-X2 |
Is the Holosun HE507K X2 an RMR or an RMSc footprint optic?
The Holosun HE507K X2 Green Dot Sight uses the Holosun K footprint, which is the RMSc pattern, so it fits RMSc-cut slides and RMSc-pattern adapter plates. The RMR-footprint equivalent with the same reticle is the HE507C X2.
Will the Holosun HE507K X2 fit a SIG P365 or a Glock 43X?
Both of those pistols use the RMSc optic cut, which matches the Holosun K footprint on the HE507K X2, so the sight fits that cut directly. Check that your slide is the optics-ready RMSc variant before ordering.
What reticle options does the Holosun HE507K X2 have?
The Holosun HE507K X2 uses the Multi-Reticle System, which switches between a 2 MOA green dot on its own, a 32 MOA circle on its own, and both together as a circle-dot, shown in a 0.58 × 0.77 in (14.7 × 19.6 mm) window.
Does the Holosun HE507K X2 have solar power?
No. The Holosun HE507K X2 runs from a CR1632 cell alone. Solar Failsafe is fitted to the larger C-series models such as the HE507C X2, while on the K-series it is Shake Awake motion activation that supports the 50,000-hour runtime rating.
What is Lock Mode on the Holosun HE507K X2?
Lock Mode is an X2-generation feature that disables the buttons on the Holosun HE507K X2 once the brightness and reticle are set, so the settings cannot be changed by accident in a holster or a range bag.
What battery does the Holosun HE507K X2 use and how is it changed?
The Holosun HE507K X2 uses one CR1632 cell in a side-loading tray, so the cell can be replaced with the optic still mounted and zeroed.
Every order is shipped from the UK with tracked delivery, with an estimated delivery time of 7–10 working days. Unused items in their original packaging can be returned within 30 days for a full refund.