Holosun EPS Core

• Enclosed emitter design: The sealed emitter is protected from lint, dust, rain and fouling, helping the sight stay usable on a carry pistol or duty handgun when open-emitter optics can require more frequent cleaning.
• 3 MOA green dot: A single, easy-to-pick-up aiming point keeps the window uncluttered and gives a practical balance between fast target acquisition at short range and precise placement on smaller targets.
• Large EPS viewing window in a compact housing: The 16x23 mm window gives a more open sight picture while the compact footprint still suits slim handgun slides, making presentation and tracking easier under recoil.
• Up to 50,000-hour battery life: The CR1620 power system supports long service intervals, while Holosun’s power management features help reduce unnecessary battery drain during everyday carry or storage.
• Rugged aluminium body with IPX8 protection: The 6061 aluminium housing, waterproof construction and shock resistance support reliable use on reciprocating pistol slides and in wet field conditions.

About the Holosun EPS Series

The Holosun EPS Series was introduced in 2022 as Holosun’s enclosed-emitter pistol-optic family for handgun platforms. Within the lineup, it sits as a practical step for shooters who want the cleaner maintenance and weather protection of an enclosed sight without moving to a bulky optic. The family includes the full-size EPS and the more compact EPS Carry, giving users options for service-size pistols as well as slimmer concealed-carry handguns.

A defining feature of the series is its enclosed emitter paired with an aspheric glass lens. In practice, that combination helps keep the reticle visible when the optic is exposed to dust, moisture or everyday carry debris, while also supporting a clear, low-distortion sight picture. Across the range, Holosun uses its K footprint, and reticle choices include straightforward single-dot versions as well as Multi-Reticle System configurations on applicable models. Depending on the model, the series also incorporates familiar Holosun technologies such as Shake Awake and, on selected versions, Solar Failsafe, making the EPS family well suited to concealed carry, duty use and general handgun shooting where compact size and protected operation matter.

About the Holosun EPS Core

The Holosun EPS Core is a compact enclosed pistol sight built around a simple concept: give the shooter the durability benefits of a sealed emitter and the speed of a generous viewing window in a package that still fits compact handgun slides. This version uses a 3 MOA green dot, which is easy to pick up quickly against varied backgrounds and remains clean and uncluttered for defensive shooting, range work and everyday carry. The 1x reflex design keeps both-eyes-open shooting natural, which helps with fast presentation and target transitions.

One of the model’s main strengths is the way its 16x23 mm window works with the enclosed housing. The larger viewing area helps the dot reappear quickly during recoil recovery, while the enclosed construction shields the emitter from water, lint and debris that can interfere with open designs. The sight is parallax free and offers adjustable intensity, so it can be tuned to ambient light rather than forcing the shooter to work around an overly bright or dim aiming point.

Mechanically, the EPS Core is built for slide-mounted use with a 6061 aluminium housing, 1.5 MOA click adjustments and ±30 MOA windage and elevation travel. That gives enough adjustment range for practical zeroing on a wide variety of handgun setups. A side-loading CR1620 battery rated up to 50,000 hours, together with Shake Awake and Lockout Mode, supports long-term carry use while reducing unnecessary battery changes and helping prevent accidental setting changes.

About Holosun

Holosun is a California-headquartered optics manufacturer focused on sights, lasers and illumination systems for shooting, hunting, law enforcement and military use. The company says it has worked on optics and laser and infrared technologies since 2013, and its product development has expanded steadily from early reflex sights into pistol optics, magnified optics and aiming lasers.

Holosun is particularly known for practical electronic sight features such as Shake Awake, Solar Failsafe and the Multi-Reticle System. In its product history, the 403 Series is identified as the starting line in 2015, followed by products such as the 510C in 2016 and the 507C and 508T pistol sight families in 2017. That background is relevant here because Holosun’s reputation in handgun optics is built on compact electronic sights that combine long battery life, durable housings and user-focused reticle systems.

Main Features

• Product type: Reflex sight
• Magnification: 1x
• Reticle: 3 MOA
• Reticle illumination: Yes
• Dot size: 3.00 MOA
• Adjustment per click: 43.6mm/100m - 1.5 MOA
• Windage range: 8.89 mrad / 30.00 MOA
• Elevation range: 8.89 mrad / 30.00 MOA
• Parallax setting: Parallax free
• Window size: 16x23 mm
• Battery: CR1620
• Battery life: 50000.00 h
• Length: 41.00 mm
• Width: 25.00 mm
• Height: 30.00 mm
• Weight: 40.00 g
• Housing material: Aluminium
• Working temperature range: - 30° / + 60°
• Waterproof: Yes
• Fogproof: Yes
• Shockproof: Yes

Warranty

Holosun provides a 3-year warranty for the electronic components of this sight. This stated period covers the electronic system and matches the warranty term given for the product.

In the Box

• CR1620 battery
• Warranty card