Description
Eliminate emitter exposure with this precision 2-MOA green dot engineered for full-size pistols with ultra-low mounting and exceptional glass clarity.
Stop worrying about dust, debris, and moisture interfering with your sight picture. The Holosun EPS Green 2 reflex sight protects your reticle with fully enclosed construction while maintaining an ultra-low deck height that works with your factory iron sights. Its 540nm green dot wavelength delivers superior visibility in varied lighting conditions, while the robust 7075 T6 aluminum housing ensures reliable performance whether you’re training, competing, or carrying defensively.
Key Features
- Enclosed Emitter Design: Front and rear glass panels completely seal the emitter, preventing dust, lint, moisture, and debris from blocking your dot—delivering consistent sight pictures in adverse conditions
- Ultra-Low Deck Height: Lowest mounting profile in the EPS series allows co-witnessing with standard-height iron sights on most full-size pistols without requiring taller aftermarket sights
- 50,000-Hour Battery Life: CR1620 battery provides up to 50,000 hours of continuous operation on medium settings with Shake Awake technology that automatically powers down during storage
- Superior Green Dot Visibility: 540nm green Super LED wavelength matched to peak human eye sensitivity offers enhanced visibility compared to red dots, particularly beneficial for shooters with astigmatism or color perception challenges
Important Compatibility Notes
- This is not the Multi-Reticle System version. This one only has the 2 MOA dot size.
- The EPS Full Size uses Holosun’s K-series footprint and includes an RMR-to-K adapter plate for mounting to RMR-compatible slides
- Glock 43X/48 MOS compatibility: These subcompact models require the K-to-RMSc adapter plate (included) or aftermarket mounting plate. Note that the full-size EPS will overhang the slide—consider the EPS Carry for better proportions on these compact models
- Sig P320/M17/M18: Requires an aftermarket mounting plate for K-series footprint compatibility
- Staccato 2011 models: Requires a specific mounting plate for installation
- Not compatible with slides featuring ZEV-style threaded posts when using the included RMR adapter plate
Why We Carry It
The enclosed emitter revolution in pistol optics addresses one of the biggest frustrations shooters faced with open-emitter designs: maintenance. While open emitters required weekly cleaning to remove lint, powder residue, and debris, the Holosun EPS green sight eliminates this concern with its dual-pane glass construction. Holosun pioneered the K-series mounting footprint specifically to achieve the lowest possible deck height while maintaining water resistance ratings—the vertical screw arrangement allows the optic to sit closer to the slide than traditional horizontal-screw designs. This sight represents Holosun’s response to competitive enclosed optics that often sacrifice window size or add bulk, delivering a streamlined profile without compromising sight picture. The green wavelength offers a distinct advantage: Human eyes are approximately five times more sensitive to green light than red, making target acquisition faster in challenging lighting transitions.
Frequently Asked Questions
Will this sight co-witness with my factory pistol sights?
The EPS features an extremely low deck height designed to co-witness with standard-height iron sights on many full-size pistols. Co-witness capability varies by pistol model based on factory sight height and slide cut depth. Lower 1/3 co-witness is most common, where the iron sights appear in the lower third of the optic window. Some pistols may achieve absolute co-witness where the iron sights align perfectly with the dot.
How does the enclosed design affect glass clarity compared to open emitters?
The EPS uses aspherical glass lenses with multilayer coatings on both the front and rear windows, maintaining exceptional clarity despite the dual-pane design. Most shooters report no noticeable difference in clarity compared to single-pane open emitters. The aspherical lens design specifically eliminates edge distortion that can occur with standard curved lenses. The trade-off of looking through two pieces of glass is offset by never having to clean debris from the emitter itself.
Can I use this on compact or subcompact carry pistols?
While the EPS Full Size can physically mount to many compact pistols using appropriate adapter plates, it’s dimensionally optimized for full-size handguns. The sight measures 1.62″ long × 1.19″ wide × 0.99″ tall with a 0.63″ × 0.91″ window. For slimline or subcompact carry pistols like the Glock 43X/48, Springfield Hellcat, or Sig P365, consider the EPS Carry model instead—it offers identical features in a more proportional footprint with a 0.58″ × 0.77″ window.
Spec Sheet
Optical Data
- Reticle: 2 MOA Dot
- Light Wavelength: 540nm
- Reticle Color: Green
- Parallax Free: Yes
- Unlimited Eye Relief: Yes
- Magnification: 1x
- Multi-Coatings: Yes
Electronic Data
- Power Source: Battery
- Battery Type: CR1620
- Battery Life (Hours): 50,000
- Brightness Setting: 8 DL & 4 NV
Mechanical Data
- Housing Material: 7075 T6 Aluminum
- Surface Finish: Anodize
- Adjustment per Click: 1.5 MOA
- W&E Travel Range: ±30 MOA
- Window Size: 0.63″ × 0.91″
- Dimension (inches): 1.62 × 1.19 × 0.99
- Weight (oz): 1.4
- Footprint: Holosun “K” series
Environment Data
- Storage Temperature: -40℃ to 70℃
- Working Temperature: -30℃ to 60℃
- Submersion: IPX8
- Vibration: 5000G
In the Box
- Multi Tool
- User Manual
- Lens Cloth
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