The Holosun EPS Green Dot Sight (SKU EPS-GR-MRS) is a full-size 1× enclosed emitter pistol green dot sight running the green Multi-Reticle System (a 2 MOA dot or a 32 MOA circle), on the Holosun K footprint with a 0.91 × 0.63 in (23.1 × 16.0 mm) window and an RMR-to-K adapter plate supplied.
The full-size EPS trades the Carry's slimness for glass — a larger window that makes the reticle easier to find under recoil and on the draw. The emitter is sealed at both ends, so rain, dust and residue cannot blank it, and the ultra-low deck height keeps a natural sight picture with iron sight co-witness on compatible slides. Solar Failsafe backs up the CR1620 whenever there is daylight to use.
How It Compares
If one fixed aiming point is enough, the EPS 2 MOA green dot sight and the EPS 6 MOA green dot sight cost less. The same Multi-Reticle System in red is the EPS red dot sight with Multi-Reticle System, and in gold the EPS gold dot sight with Multi-Reticle System. For a slim RMSc-cut slide, the EPS Carry green dot sight with Multi-Reticle System is the compact equivalent. Browse all enclosed red dot sights, or read our enclosed versus open emitter comparison.
Ideal For
- Section 1 long-barrelled pistols and licensed revolvers wanting a duty-grade sealed optic
- Practical shotgun and 3-Gun stages where the 32 MOA circle speeds up close targets
- Target and gallery rifle shooters who see a green reticle more sharply
- Airsoft gas blowback and training pistols used outdoors year-round
Key Features
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Reticle: Multi-Reticle System — 2 MOA dot or 32 MOA circle, green at 540nm
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Emitter: Fully enclosed and sealed against dust, lint and rain
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Window: 0.91 × 0.63 in (23.1 × 16.0 mm) with an aspheric glass lens
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Power: Side-loading CR1620 tray with Solar Failsafe backup and Shake Awake, up to 50,000 hours
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Illumination: 8 daylight and 4 night vision compatible brightness settings
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Adjustment: 1.5 MOA per click windage and elevation
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Footprint: Holosun K footprint with an RMR-to-K adapter plate included
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Housing: 7075-T6 aluminium rated IPX8, ultra-low deck height
Technical Specifications
| Optic Type |
Enclosed emitter green dot sight, full size |
| Magnification |
1× (non-magnifying) |
| Reticle |
Multi-Reticle System — 2 MOA dot / 32 MOA circle, green (540nm) |
| Window Size |
0.91 × 0.63 in (23.1 × 16.0 mm) |
| Brightness |
8 daylight, 4 night vision settings |
| Click Value |
1.5 MOA per click |
| Adjustment Range |
±30 MOA windage and elevation |
| Battery |
CR1620 with Solar Failsafe, up to 50,000 hours |
| Footprint |
Holosun K footprint (RMR-to-K adapter plate included) |
| Housing |
7075-T6 aluminium |
| Water Resistance |
IPX8 |
| Shock Rating |
5000G |
| SKU / MPN / UPC |
EPS-GR-MRS / EPS-GR-MRS / 810047071587 |
What's Included
- Holosun EPS green dot sight (EPS-GR-MRS)
- RMR-to-K adapter plate
- CR1620 battery
- Mounting hardware
- Adjustment tool
- Lens cloth
- User manual
Warranty
Covered by Holosun's manufacturer's warranty. Keep your order confirmation as proof of purchase and register the optic with Holosun after fitting; we handle warranty claims for you from the UK.
UK Delivery & Support
UK-stocked and dispatched tracked from our UK warehouse — no import duties or customs delays — backed by UK-based support and Holosun's warranty.
Frequently Asked Questions
Is the Holosun EPS an RMSc or an RMR footprint optic?
It uses the Holosun K footprint and ships with an RMR-to-K adapter plate, so it mounts to Holosun K-cut slides directly and to RMR-cut slides through the supplied plate; it is not an RMSc-footprint optic. Our RMR vs RMSc footprint guide explains which pattern your pistol uses.
Which reticles does the EPS-GR-MRS Multi-Reticle System offer?
The Holosun EPS green MRS switches between a 2 MOA green dot for precision and a 32 MOA green circle for fast close-range acquisition.
What battery does the Holosun EPS use and how is it changed?
The Holosun EPS runs on a single CR1620 coin cell in a side-loading tray, so the battery can be swapped without taking the optic off the slide and without losing your zero. One cell gives up to 50,000 hours.
Does the EPS-GR-MRS have Solar Failsafe?
Yes — the EPS-GR-MRS pairs its CR1620 battery with Solar Failsafe, so the integrated solar panel drives the reticle whenever ambient light allows, even with a flat battery.
What is the difference between the Holosun EPS and the EPS Carry?
The full-size Holosun EPS has a 0.91 × 0.63 in window and uses the Holosun K footprint with an RMR-to-K adapter, while the EPS Carry is the narrower version built on the RMSc footprint for slim-slide pistols.
Is the Holosun EPS waterproof?
Yes — the EPS is rated IPX8 and the emitter is fully enclosed, so the dot stays visible in rain and the housing tolerates immersion.
