Holosun EPS CORE Red Dot Sight 3 MOA Dot Reticle
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The Holosun EPS CORE (EPS-CORE-RD-3) is a 1x enclosed-emitter red dot sight with a fixed 3 MOA dot and a direct RMSc footprint.
The stripped-back version of the enclosed EPS, which keeps the one feature people buy an enclosed sight for: a sealed emitter that lint and rain cannot block.
The housing is 6061 aluminium, measuring 1.61 x 1.18 x 0.97 in (40.9 x 30.0 x 24.6 mm) and weighing 1.4 oz (40 g), rated IPX8 for water and tested to 5000G of shock. A CR1620 cell sits in a side-loading tray for up to 50,000 hours, with Shake Awake sleeping the reticle when the gun is still. Eight daylight and four night vision brightness settings are available, and the sight remembers the last one used.
A 3 MOA dot is the middle choice: it covers roughly three inches at 100 yards, small enough for a deliberate shot but still quick to find under pressure, where a 6 MOA dot is faster and cruder and a 2 MOA dot is finer and slower. Adjustment is 1.5 MOA per click with plus or minus 30 MOA of travel. What the CORE gives up against the dearer EPS models is Solar Failsafe and the 7075 housing alloy; what it keeps is the enclosed window and the direct footprint.
Hosts cut for the RMSc footprint, which is the pattern used on slim-slide optics-ready pistols; slide cuts vary between production runs, so check yours before ordering. The same sight is made with a green 3 MOA dot or a gold 3 MOA dot, and the switchable circle-dot version is the EPS CORE with Multi-Reticle System.
| Optic type | Enclosed emitter red dot sight, 1x |
|---|---|
| Reticle | 3 MOA red dot |
| Window | 0.90 x 0.63 in (22.9 x 16.0 mm) |
| Illumination | 8 daylight and 4 night vision settings, with memory recall |
| Adjustment | 1.5 MOA per click, plus or minus 30 MOA |
| Battery | CR1620 in a side-loading tray, up to 50,000 hours |
| Power management | Shake Awake |
| Footprint | Direct RMSc, no adapter plate required |
| Housing | 6061 aluminium, IPX8, 5000G |
| Dimensions | 1.61 x 1.18 x 0.97 in (40.9 x 30.0 x 24.6 mm) |
| Weight | 1.4 oz (40 g) |
| MPN | EPS-CORE-RD-3 |
An enclosed window and a direct RMSc fit, with the extras left off rather than the essentials. 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: RMSc Footprint Red Dot Sights, EPS CORE MRS or browse all Holosun.
| Brand | Holosun |
|---|---|
| Part no. | EPS-CORE-RD-3 |
| Category | Red Dot Sight |
| Barcode | 810047074748 |
£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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