Holosun EPS Core Gold Dot Enclosed Pistol Sight – 3 MOA, RMSc Footprint, Black
Quick Check:
Optic Type: Enclosed Pistol Sight
Reticle: 3 MOA Dot
Reticle Color: Gold
Footprint: RMSc (Direct Mount)
Lens: Full-Size EPS Window
Window Size: 0.9" x 0.63"
Battery: CR1620, Side-Tray
Battery Life: Up to 50,000 Hours
Brightness Settings: 8 Daylight / 4 Night Vision
Housing: 6061-T6 Aluminum
Finish: Anodized, Black
Weight: 1.4 oz
MPN: EPS-CORE-GD3
FULL-SIZE EPS WINDOW IN AN RMSc FOOTPRINT
The EPS Core takes the large viewing window from Holosun’s full-size EPS and fits it into a compact enclosed housing that mounts directly to the RMSc footprint. You get a bigger sight picture than typical enclosed micro optics without needing a larger slide cut.
Product Overview
The Holosun EPS Core gives slim and optic-ready carry pistols an enclosed-emitter red dot with a full-size window. The enclosed design seals the emitter away from dirt, lint, rain, and debris, so a smudge or speck on the emitter won’t distort or block your dot.
This version features a 3 MOA gold dot. Gold stands out sharply against bright backgrounds and busy targets, and many shooters with red-green color vision deficiency find it easier to see than a red dot.
Automatic brightness adjusts the dot to your surroundings, Shake Awake powers the optic up the moment the pistol moves, and the side-tray CR1620 battery can be changed without pulling the optic off your slide.
Technical Specifications
Brand: Holosun
Model: EPS Core
MPN: EPS-CORE-GD3
Optic Type: Enclosed Pistol Sight
Magnification: 1x
Reticle: 3 MOA Dot
Reticle Color: Gold
Light Wavelength: 590nm
Footprint: RMSc
Window Size: 0.9" x 0.63"
Battery: CR1620 (Side-Tray)
Battery Life: Up to 50,000 Hours
Brightness: 8 Daylight / 4 Night Vision Settings
Automatic Brightness: Yes
Shake Awake: Yes, with Lockout Mode
Night Vision Compatible: Yes
Waterproof Rating: IPX8
Shock Rating: 5000G
Housing Material: 6061-T6 Aluminum
Finish: Anodized
Color: Black
Dimensions: 1.61" L x 1.18" W x 0.97" H
Weight: 1.4 oz
Enclosed Emitter Protection
Open emitters can be blocked by rain, mud, snow, or pocket lint, especially on a carry gun. The EPS Core’s fully enclosed housing keeps the emitter sealed, giving you a dependable dot in the conditions where an open design can let you down.
3 MOA Gold Dot
The 3 MOA dot is a versatile size: small enough for precise shots at distance and large enough to pick up quickly up close. The gold color holds contrast in bright light and against varied backgrounds where red can wash out.
Automatic Brightness Adjustment
A light sensor reads ambient conditions and adjusts dot intensity automatically. Prefer to set it yourself? Manual brightness is available with 8 daylight settings and 4 night vision settings.
Shake Awake with Lockout Mode
Shake Awake puts the optic to sleep when the pistol sits still and wakes it instantly on movement, saving battery without sacrificing readiness. Lockout Mode locks the controls so your brightness settings won’t change from accidental button presses in a holster or during handling.
Side-Tray CR1620 Battery
The battery loads from the side, so you can swap it without removing the optic and losing zero. Battery life is rated up to 50,000 hours.
6061-T6 Aluminum Housing
The housing is machined from 6061-T6 aluminum and anodized black, keeping weight down to 1.4 oz, a good fit for carry pistols. It’s IPX8 waterproof and rated to 5000G.
Why Choose the Holosun EPS Core Gold Dot?
✔ Enclosed emitter design
✔ Full-size EPS window in an RMSc footprint
✔ High-visibility 3 MOA gold dot
✔ Automatic brightness adjustment
✔ Shake Awake with Lockout Mode
✔ Side-tray CR1620 battery, no need to remove the optic
✔ Up to 50,000 hours of battery life
✔ Night vision compatible
✔ IPX8 waterproof, 5000G shock rated
✔ Lightweight 6061-T6 aluminum housing, 1.4 oz
Mounting & Fitment
The EPS Core mounts directly to slides cut for the RMSc footprint. Pistols with other optic cuts require the correct adapter plate.
FITMENT NOTE
Confirm that your slide is cut for the RMSc footprint, or that you have the correct adapter plate, before ordering. Screw length and mounting hardware requirements can vary by pistol.
Frequently Asked Questions
What footprint does the EPS Core use?
RMSc. It mounts directly to RMSc-cut slides.
What reticle does this model have?
A 3 MOA gold dot.
Why choose a gold dot?
Gold offers strong contrast in bright light and against varied backgrounds, and many shooters with red-green color vision deficiency see it more easily than red.
Is this an enclosed emitter optic?
Yes. The emitter is fully sealed inside the housing.
What battery does it use?
A CR1620, loaded through a side tray so the optic stays mounted during battery changes.
How long does the battery last?
Up to 50,000 hours.
Does it have automatic brightness?
Yes, along with 8 daylight and 4 night vision manual settings.
Is it night vision compatible?
Yes.
Does this model have Solar Failsafe?
No. This 3 MOA dot model is battery-powered only.
What is the housing made from?
6061-T6 aluminum with a black anodized finish.
How much does it weigh?
1.4 oz.
Full-Size View. Compact Footprint.
The Holosun EPS Core Gold Dot puts a full-size enclosed window, a high-visibility 3 MOA gold dot, and modern power management into a lightweight RMSc-footprint optic built for carry and duty pistols.
