The Holosun HE507C X2 Green Dot Sight (HE507C-GR X2) is a 1x open-reflex pistol green dot sight on the Trijicon RMR footprint, with Holosun's Multi-Reticle System — a 2 MOA green dot, a 32 MOA circle, or both together as a circle-dot — and Solar Failsafe supplemental power.
It is the green-emitter version of Holosun's most widely fitted pistol optic. The circle drives fast close-range hits, the 2 MOA dot is the precise reference, and the switch between them is a button press. Solar Failsafe powers the reticle from light and keeps it lit if the cell dies, Shake Awake sleeps the optic when it is idle, and X2 Lock Mode prevents accidental setting changes.
How It Compares
The red-emitter version is the HS507C X2 red dot sight. For a single green dot with no circle, the HE407C X2 green dot sight is the simpler option, and the HE507C X2 with the ACSS Vulcan reticle replaces the Multi-Reticle System with a fixed chevron and ring. On a narrower slide, the HE507K X2 green dot sight is the RMSc-footprint equivalent. Browse the full Holosun green dot sight range and all RMR footprint red dot sights.
Ideal For
- Section 1 long-barrelled pistols and revolvers held on a UK firearm certificate
- Pistol-calibre carbines where a green circle-dot is quickest on close targets
- Shooters who see a green reticle more clearly than red against dark backgrounds
- Airsoft GBB pistol builds and practice guns used year-round outdoors
Key Features
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Reticle: green Multi-Reticle System — selectable 2 MOA dot, 32 MOA circle, or circle-dot
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Illumination: 12 brightness settings — 10 daylight and 2 night-vision compatible
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Electronics: Solar Failsafe supplemental power plus Shake Awake motion activation
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Controls: X2 Lock Mode prevents accidental brightness and reticle changes
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Footprint: Trijicon RMR footprint, for RMR-cut slides and RMR-pattern adapter plates
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Battery: side-loading CR1632 tray, up to 50,000 hours of runtime
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Adjustment: 1 MOA per click windage and elevation, parallax-free
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Housing: aluminium, open-reflex construction
Technical Specifications
| 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 |
| Footprint |
Trijicon RMR footprint |
| Illumination |
12 brightness settings — 10 daylight / 2 night-vision compatible |
| Power |
Battery with Solar Failsafe supplemental power |
| 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 |
Aluminium |
| MPN |
HE507C-GR X2 |
What's Included
- Holosun HE507C-GR X2 green dot sight
- Multi-tool, lens cloth and user manual
Warranty
Covered by Holosun's manufacturer warranty, handled in the UK by Xtreme Tactical.
UK Delivery & Support
UK-stocked and dispatched tracked from our UK warehouse — no import duties or customs delays — backed by UK-based support and Holosun's warranty.
Frequently Asked Questions
What reticle options does the Holosun HE507C X2 have?
The Holosun HE507C X2 Green Dot Sight 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. The circle is the faster reference up close and the 2 MOA dot is the more precise one at distance.
Is the Holosun HE507C X2 an RMR or an RMSc footprint optic?
The Holosun HE507C X2 uses the Trijicon RMR footprint, so it fits RMR-cut slides and optics-ready pistols supplied with an RMR-pattern adapter plate. The RMSc-footprint equivalent with the same reticle is the HE507K X2.
What is Lock Mode on the Holosun HE507C X2?
Lock Mode is an X2-generation feature that disables the buttons on the Holosun HE507C X2 once the brightness and reticle are set, so the settings cannot be changed by accident in a holster, a slip or a bag.
What does Solar Failsafe do on the HE507C X2?
Solar Failsafe draws supplemental power from ambient light and keeps the green reticle on the Holosun HE507C X2 lit even if the CR1632 cell has failed, so a flat battery does not leave the sight dark in daylight.
What battery does the Holosun HE507C X2 use and how is it changed?
The Holosun HE507C X2 uses one CR1632 cell in a side-loading tray. The tray opens from the side of the housing, so the cell can be replaced without removing the optic or losing zero.
Is the Holosun HE507C X2 night-vision compatible?
Yes. Two of the twelve brightness settings on the Holosun HE507C X2 are night-vision compatible, so the green reticle can be dimmed far enough to use behind a night vision device.
