Holosun HE509T X2 Green Dot Sight Multi-Reticle System
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The Holosun HE509T X2 in green is a 1x fully enclosed pistol sight built on the native 509T footprint, in a nitrogen-purged titanium housing.
Titanium and a sealed emitter make this the toughest of Holosun's mini reflex sights, and green is the colour the human eye reads brightest for a given amount of power.
The Multi-Reticle System switches between a 2 MOA dot, a 32 MOA circle and the two together, in green at 540nm behind a 0.66 x 0.9 in window. The housing measures 1.6 x 1.16 x 1.13 in at 1.27 oz, is rated IP67 and tested to 5000G, and being nitrogen-purged it will not fog from the inside. Eye relief is unlimited and the sight is parallax-free.
A CR1632 gives up to 50,000 hours at setting 6, backed by Solar Failsafe drawing on ambient light and Shake Awake sleeping the reticle when the pistol is still, with a lock mode to stop settings being knocked in a holster. Illumination runs to eight daylight settings and four night-vision levels, and the turrets move 1 MOA per click with 30 MOA either side of centre. The footprint is worth checking first: it is the 509T pattern, with an RMR-to-509T plate included for RMR-cut slides, and it will not sit on an RMSc slimline cut.
Slides cut for the 509T take it directly, and the supplied plate carries it onto RMR-cut slides and RMR-pattern mounts, including rifle and shotgun mounts on that pattern. The same optic comes in red and gold; for an open-emitter titanium sight in green on the RMR footprint, see the HE508T X2 green.
| Optic Type | Enclosed pistol green dot sight, 1x, parallax-free |
|---|---|
| Reticle | Multi-Reticle System: 2 MOA dot / 32 MOA circle / circle-dot |
| Reticle Colour | Green, 540nm |
| Window Size | 0.66 x 0.9 in |
| Footprint | 509T, RMR-to-509T adapter plate included |
| Illumination | 8 daylight / 4 night-vision settings |
| Click Value | 1 MOA per click |
| Adjustment Range | 30 MOA either side of centre |
| Battery | CR1632, up to 50,000 hours at setting 6 |
| Power Management | Solar Failsafe, Shake Awake, lock mode |
| Housing | Titanium, nitrogen-purged |
| Durability | IP67, 5000G shock rating |
| Dimensions | 1.6 x 1.16 x 1.13 in |
| Weight | 1.27 oz |
| MPN | HE509T-GR-X2 |
Sealed, purged and cased in titanium, with the reticle colour the eye works hardest for. Order the HE509T X2 Green 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, Enclosed Red Dot Sights or browse all Holosun.
| Brand | Holosun |
|---|---|
| Part no. | HE509T-GR X2 |
| Category | Red Dot Sight |
| Barcode | 605930625868 |
£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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