Description
The Holosun EPS Red MRS delivers enclosed-emitter reliability with multi-reticle versatility for full-size duty and carry pistols.
Whether you’re training at the range or carrying for protection, keeping your red dot clear and functional matters. The Holosun EPS Red MRS solves the debris and moisture problems that plague open-emitter sights by fully enclosing the optic system behind dual-pane glass. Its low-profile design works with standard-height iron sights on many pistol models, while the switchable 2 MOA dot and 32 MOA circle reticle adapts to both precision shooting and rapid target acquisition scenarios. Built from aircraft-grade 7075 T6 aluminum and backed by solar failsafe technology, this sight keeps working when your carry gun needs to perform.
Key Features
- Enclosed Emitter Design: Dual-pane glass system protects the LED emitter from rain, dust, and pocket lint that can disrupt open-emitter dots
- Multi-Reticle System (MRS): Toggle between 2 MOA dot only, 32 MOA circle with 2 MOA dot, or 32 MOA circle only to match your shooting scenario
- Solar Failsafe + 50,000-Hour Battery: Solar panel supplements the CR1620 battery for extended runtime, with automatic brightness adjustment in daylight conditions
- Ultra-Low Deck Height: Holosun’s lowest optic profile facilitates co-witness with standard-height iron sights on most pistol platforms
Important Compatibility Notes
The Holosun EPS Red MRS uses the Holosun K Series (modified RMSc) footprint. Please note the following:
- Adapter plate required for: Most full-size pistols, including Glock MOS series, Sig P320/M17/M18, Staccato 2011 models, and other RMR-footprint slides
- Not compatible with: Slides featuring Zev-style raised threaded posts (posts must be removed for proper fitment)
Why We Carry It
The EPS represents Holosun’s answer to a persistent problem in the pistol optics world: how to protect the emitter without adding excessive bulk. By engineering their lowest-profile enclosed sight to date, Holosun created an optic that works with existing holsters and maintains standard sight pictures while delivering the weather resistance previously reserved for larger duty optics. The included RMR adapter plate makes this sight compatible with the vast majority of optics-ready pistols on the market, eliminating the need for custom milling in most cases. Professional reviewers have consistently noted that the EPS maintains zero through thousands of rounds and holds up to drop tests that would damage lesser optics.
Frequently Asked Questions
How does the enclosed design affect sight picture and clarity?
The EPS features aspherical glass with minimal distortion in the center viewing area. Some users report slight edge distortion when viewing at extreme angles, which is common in enclosed designs with dual-pane construction. The tradeoff is complete protection from environmental debris that can obscure or create false dots in open-emitter designs.
Can I change the battery without removing the optic from my pistol?
Yes. The EPS includes a side-loading battery tray accessible without unmounting the optic. Simply unscrew the battery door on the right side of the housing, remove the CR1620 battery, and install a fresh one. The solar panel provides backup power if the battery dies unexpectedly.
Will this work with my Glock MOS pistol and standard-height sights?
The EPS will mount to Glock MOS pistols using the included RMR adapter plate. Standard-height sights typically provide lower 1/4 co-witness with the adapter plate installed. The exact sight picture depends on your specific Glock model and sight manufacturer, but most users report usable backup sights without needing suppressor-height replacements.
Spec Sheet
Optical Data
- Reticle: 2 MOA Dot & 32 MOA Circle
- Light Wavelength: 650nm
- Reticle Color: Red
- 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 Daylight & 4 Night Vision
Mechanical Data
- Housing Material: 7075 T6 Aluminum
- Surface Finish: Anodize
- Adjustment per Click: 1.5 MOA
- Windage & Elevation Travel Range: ±30 MOA
Physical Data
- Window Size: 0.63″ × 0.91″
- Dimension (inches): 1.62″ × 1.19″ × 0.99″
- Weight (ounces): 1.4
Environment Data
- Storage Temperature: -40°F to 158°F (-40°C to 70°C)
- Working Temperature: -22°F to 140°F (-30°C to 60°C)
- Submersion: IPX8
- Vibration: 5,000G
In the Box
- Multi Tool
- User Manual
- Lens Cloth
