Holosun HE507C X3 Green Dot Sight Multi-Reticle System Solar Failsafe
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The Holosun HE507C X3, part HE507C-X3-GR, is a 1x open-emitter pistol sight on the Holosun 507C and Trijicon RMR footprint, with a 540 nm green Multi-Reticle System behind a 0.91 x 0.67 in window.
The eye is more sensitive to green than to red at the same output, so the same power draw arrives looking brighter and cleaner. That is the entire case for a green emitter, and it holds up in woodland and failing light.
The Multi-Reticle System switches between a 2 MOA dot, a 32 MOA circle and both together, which covers precision and speed from one sight. Windage and elevation move in 1 MOA per click across 50 MOA of travel each way. A CR1632 loads from a side tray so the cell changes with the sight still mounted and zeroed, rated to 50,000 hours at setting six, and Solar Failsafe, Shake Awake and Lock Mode sit behind it. The housing is 7075-T6 aluminium, IP67 rated, at 1.55 oz.
What the X3 generation adds over the X2 is the sensor position. The light meter faces forward, so automatic brightness responds to the light falling on the target instead of the light behind the shooter — which is exactly the case that catches an older optic out when you step from shade into open ground. The reticle is open-emitter, so the LED channel is exposed: it is lighter and cheaper than an enclosed design, and it wants a wipe if you shoot in heavy rain or fine dust.
It bolts to any RMR-cut slide, and to an optics-ready pistol supplied with an RMR-pattern adapter plate. On a rifle or a pistol-calibre carbine it will sit on any RMR-footprint mount. The previous generation is the HE507C X2, the same footprint with an ACSS reticle is the HE507C X2 ACSS Vulcan, and for a larger competition window there is the HE507 ProMax. Browse all RMR footprint red dot sights.
| Type | Open-emitter pistol green dot sight, 1x |
|---|---|
| Reticle | Multi-Reticle System — 2 MOA dot / 32 MOA circle / circle-dot, 540 nm green |
| Footprint | Holosun 507C / Trijicon RMR |
| Window | 0.91 x 0.67 in |
| Illumination | 12 settings — 10 daylight, 2 night vision, forward-facing sensor |
| Adjustment | 1 MOA per click, ±50 MOA |
| Battery | CR1632 in a side-loading tray, up to 50,000 hours at setting 6 |
| Power | Solar Failsafe, Shake Awake, Lock Mode |
| Housing | 7075-T6 aluminium |
| Water resistance | IP67 |
| Weight | 1.55 oz |
| Brand | Holosun |
| MPN | HE507C-X3-GR |
Green where it counts, on the footprint most optics-ready slides already carry. Order the HE507C X3 today — imported from the USA with all duties paid by us and dispatched tracked from the UK in 7–10 business days, with nothing to pay on delivery.
Explore more: Green Dot Sights, HE507COMP Competition or browse all Holosun.
| Brand | Holosun |
|---|---|
| Part no. | HE507C-X3-GR |
| Category | Red Dot Sight |
| Barcode | 810047074564 |
£5 tracked UK delivery on every order via Royal Mail Tracked 24. Our products are ordered in from the manufacturer rather than held in UK stock, so please allow 7 to 10 business days (Monday to Friday, excluding bank holidays) from the date of your order for it to reach you. Tracking details are emailed on dispatch. UK delivery only.
You have 30 days from receiving your order to cancel it for any reason, then 14 days to send it back unused and in its original packaging. Faulty, damaged or incorrect items are replaced or refunded and we cover reasonable return postage. Refunds go back to your original payment method within 14 days of receiving the return.
7 to 10 business days from the date of your order. Every order is sent Royal Mail Tracked for a flat £5 and you receive tracking details by email when it is dispatched.
Yes. We list only genuine parts and optics from the brands shown, ordered in from the manufacturer for your order.
Compatibility notes on this page come from the manufacturer. If you are unsure, email us with your make and model before ordering and we will check rather than guess.
Yes. Bundle & Save applies automatically in your basket: 5% off when you buy 2 items, 10% off at 3 items and 15% off at 4 or more. It works across the whole range, so you can mix and match, and there is no code to enter.
Yes — you have 30 days from delivery to cancel for any reason, as long as the item is unused and in its original packaging. See our returns policy for the details.
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