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.
Why shooters choose the EPS CORE
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Reticle — fixed 3 MOA green dot at 540 nm
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Emitter — fully enclosed and sealed against dust, lint and moisture
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Footprint — direct RMSc — it mounts to slim-slide cuts with no adapter plate
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Power — side-loading CR1620 with Shake Awake, up to 50,000 hours
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Illumination — 8 daylight and 4 night vision settings with brightness memory recall
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Adjustment — 1.5 MOA per click, ±30 MOA of travel
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Build — hard-anodised 6061 aluminium, IPX8 and 5000G, 1.4 oz (40 g)
What the EPS CORE fits
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.
Specifications
| 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
