Holosun EPS CORE Green Dot Sight 3 MOA Dot Reticle
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The Holosun EPS CORE Green Dot Sight is a 1x enclosed-emitter pistol sight with a fixed 3 MOA green dot and a direct RMSc footprint, part number EPS-CORE-GR-3.
CORE is the stripped-back EPS: it drops Solar Failsafe and the premium alloy, and keeps the sealed emitter that is the only reason to choose an enclosed sight in the first place.
The housing is hard-anodised 6061 aluminium measuring 1.61 × 1.18 × 0.97 in (40.9 × 30.0 × 24.6 mm) and weighing 1.4 oz (40 g), rated IPX8 for water and 5000G for shock. The window is 0.90 × 0.63 in (22.9 × 16.0 mm) and the emitter is a 540 nm green.
A 3 MOA dot sits between the 2 MOA precision option and the 6 MOA speed option, covering roughly three inches at 100 yards — a sensible middle if you do not want to specialise. Adjustment is 1.5 MOA per click through ±30 MOA. The CR1620 loads from the side, so the cell changes without unbolting the sight or disturbing zero, and Shake Awake plus brightness memory recall stretch it to 50,000 hours across 8 daylight and 4 night-vision settings. There is no solar panel on this model; that belongs to the Multi-Reticle System versions.
It bolts straight to an RMSc-pattern optic cut with nothing between sight and slide, and it will not sit on an RMR-pattern cut without the correct plate. For a switchable dot and circle in the same body see the EPS CORE Green MRS, or the same 3 MOA dot in red as the EPS CORE Red 3 MOA. More sit in RMSc footprint red dot sights.
| Optic type | Enclosed-emitter green dot sight, 1x |
|---|---|
| Reticle | 3 MOA dot, 540 nm green |
| Window | 0.90 × 0.63 in (22.9 × 16.0 mm) |
| Illumination | 8 daylight / 4 night vision, with memory recall |
| Adjustment | 1.5 MOA per click, ±30 MOA |
| Battery | CR1620, side-loading tray, up to 50,000 hours |
| Power management | Shake Awake |
| Footprint | Direct RMSc, no adapter plate required |
| Dimensions | 1.61 × 1.18 × 0.97 in (40.9 × 30.0 × 24.6 mm) |
| Weight | 1.4 oz (40 g) |
| Housing | Hard-anodised 6061 aluminium, IPX8, 5000G |
| MPN | EPS-CORE-GR-3 |
A sealed emitter with the extras left off, rather than an open emitter with the extras left on. Order the EPS CORE 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: Enclosed Red Dot Sights, EPS CORE Green MRS or browse all Holosun
| Brand | Holosun |
|---|---|
| Part no. | EPS-CORE-GR-3 |
| Category | Red Dot Sight |
| Barcode | 810047074755 |
£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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