Why I Trust Holosun EPS Battery Type for Reliable Optic Performance: An Expert’s Perspective

When I first started exploring optics for my firearm, one detail that quickly caught my attention was the type of battery powering my Holosun EPS. Understanding the right battery type isn’t just about keeping the sight illuminated; it’s about ensuring reliability, longevity, and optimal performance in every situation. The Holosun EPS series has earned a reputation for durability and cutting-edge technology, but like any advanced device, it depends heavily on the power source you choose. In this article, I want to share what I’ve learned about the Holosun EPS battery type, helping you make informed decisions that keep your optic running smoothly whenever you need it most.

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1. 8 PCS Steel Screws for Holosun Battery Tray EPS/EPS Carry

When I first came across the 8 PCS Steel Screws for Holosun Battery Tray EPS/EPS Carry, I was immediately drawn to the comprehensive nature of the package. Having eight screws divided into two sizes—four M2.5 screws and four M2 screws—along with a screwdriver included, it clearly shows that this set is designed with versatility and user convenience in mind. The M2.5 screws specifically fit Holosun EPS and EPS Carry battery trays, while the M2 screws are compatible with a wider range of trays, making this an excellent all-in-one solution for anyone who owns Holosun optics or related equipment.

One of the standout features of this product is its compatibility. It supports a variety of Holosun models such as 407C, 407C-GR, 407CO, 407K-GR, 507C, 507C-GR, 507K, 507K-GR, 508T, 508T-GR, 509T-RD, 509T-GR, EPS, and EPS Carry. This broad compatibility means I can confidently use these screws for multiple devices without the hassle of searching for different screws for each optic. For users like me who own more than one Holosun optic or plan to upgrade in the future, having a reliable, compatible screw set is a real time-saver and reduces the risk of damage caused by using incorrect parts.

Durability is another critical aspect that stood out to me. These screws are crafted from high-strength carbon steel and have a special coating that protects them from wear and tear. Knowing that the screws can withstand frequent use and harsh environmental conditions gives me peace of mind, especially if I’m out in the field or engaging in activities where my gear might face rough handling or exposure to the elements. This robust build quality ensures longevity, making it a cost-effective purchase in the long run.

Another practical benefit is the inclusion of a screwdriver in the package. This thoughtful addition means I don’t have to worry about finding the right tool to install or replace the screws. Whether I’m setting up a new optic or performing maintenance on an existing one, having the correct screwdriver right at hand simplifies the process and ensures that I handle the screws properly, minimizing the risk of stripping or damaging them.

Overall, this set is an ideal choice for anyone looking to maintain or upgrade their Holosun optics. It combines precision fit, durability, and convenience in one package. If you’re like me and value reliability and ease of use in your gear maintenance, investing in these steel screws is a smart move. It’s a small accessory that makes a significant difference in keeping your optics securely mounted and performing at their best.

Feature	Details
Package Contents	8 Carbon Steel Screws (4 pcs M2.5 + 4 pcs M2), 1 Screwdriver
Compatibility	Fits Holosun EPS/EPS Carry Battery Trays and all other trays; compatible with Holosun models 407C, 407C-GR, 407CO, 407K-GR, 507C, 507C-GR, 507K, 507K-GR, 508T, 508T-GR, 509T-RD, 509T-GR, EPS, EPS Carry
Material	High-Strength Carbon Steel with Protective Coating
Durability	Designed to withstand frequent use and harsh environments
Included Tool	Screwdriver for easy installation and maintenance

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2. HOLOSUN EPS Carry Green 2 MOA Dot Reflex Pistol Sight – Waterproof Shake-Awake Parallax-Free Aluminum Enclosed Sight for Subcompact Handguns – RMSc-to-K Footprint Adapter Plate Included

When I first came across the HOLOSUN EPS Carry Green 2 MOA Dot Reflex Pistol Sight, I immediately appreciated how thoughtfully engineered it is for subcompact handguns. This sight is clearly designed with the practical needs of concealed carry and everyday carry (EDC) users in mind. Its compact size and enclosed design make it ideal for narrower pistols like the G43 MOS, Hellcat, or P365 X/XL, which are popular choices for personal defense. The inclusion of an RMSc-to-K footprint adapter plate also impressed me, as it ensures broad compatibility, saving me from worrying about whether it would fit my particular pistol model.

One of the standout features for me is the aspheric lens, which delivers a perfectly clear sight picture. This clarity is crucial in fast-paced or high-stress situations where quick target acquisition matters. I also like the ultra-low dot height, which allows the green dot to sit low enough to be used alongside factory iron sights without obstructing them. The sight’s construction from 7075 T6 aluminum gives me confidence in its durability and ability to withstand the rigors of daily carry, while the anodized finish adds corrosion resistance and a sleek look.

The performance specifications further highlight why this reflex sight is an excellent choice. The 2 MOA green dot powered by a 540nm Super LED strikes a great balance between precision and visibility. I find the green dot easier to pick up quickly in various lighting conditions compared to red dots, and the 2 MOA size is precise enough for accurate shooting without being too small to find in a hurry. The exceptional battery life of up to 50,000 hours on a single CR1620 battery means I can rely on it for years without frequent replacements, which is a big convenience for me as a user.

Another feature I found particularly useful is the Shake Awake technology. This smart power management automatically turns off the LED when the pistol is idle, dramatically extending battery life. At the same time, the slightest movement instantly reactivates the sight, so I never have to worry about delays when drawing my handgun. I appreciate the option to adjust or disable this feature depending on personal preference, which adds flexibility for different scenarios or user habits.

The multilayer reflective glass is another area where HOLOSUN has invested in quality. The coatings improve light transmission and reduce glare, which means I get a bright, high-contrast reticle in a wide range of lighting environments. This also contributes to better battery efficiency since less power is needed to maintain reticle visibility. The parallax-free design and unlimited eye relief make aiming intuitive and fast, no matter how I position my eye relative to the sight.

To help summarize the key aspects of this reflex sight, here’s a quick overview

Feature	Specification/Benefit
Reticle	Green 2 MOA Dot for quick target acquisition and precision
Lens	Aspheric, multilayer reflective glass for clarity and glare reduction
Material	7075 T6 Aluminum with anodized finish for strength and corrosion resistance
Battery	CR1620 with up to 50,000 hours life, supported by Shake Awake tech
Compatibility	Designed for subcompact handguns; includes RMSc-to-K footprint adapter
Brightness Settings	10 Daylight and 2 Night Vision settings for versatile use
Additional Features	Parallax-free, unlimited eye relief, built-in rear notch sight

Overall, I find the HOLOSUN EPS Carry Green 2 MOA Dot Reflex Pistol Sight to be a highly effective and reliable optic for subcompact pistols. Its blend of durability, battery efficiency, and crisp green dot reticle makes it a standout choice for anyone looking to upgrade their handgun’s aiming capabilities. If you’re like me and value quick target acquisition, long battery life, and a compact profile that won’t interfere with your pistol’s handling or holster compatibility, this sight is definitely worth considering. The thoughtful features and robust build quality give me confidence that it will perform when it matters most, which is ultimately what I look for in a carry optic.

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3. HOLOSUN EPS Red MRS 2 MOA Dot & 32 MOA Circle Reflex Pistol Sight – Waterproof Dustproof Shake-Awake Parallax-Free Full-Sized Enclosed Handgun Sight – RMR-to-K Footprint Adapter Plate Included

When I first came across the HOLOSUN EPS Red MRS 2 MOA Dot & 32 MOA Circle Reflex Pistol Sight, I was immediately impressed by the thoughtful design and robust features tailored specifically for handgun users who demand precision, durability, and versatility. This sight strikes a great balance between advanced technology and practical usability, making it an excellent choice whether you’re a competitive shooter, a law enforcement officer, or a responsible firearm owner seeking a reliable optic upgrade.

One of the standout elements for me is the full-sized, enclosed design with an aspheric lens. This lens ensures a crystal-clear sight picture, which is critical for quick target acquisition and accuracy under varied conditions. The ultra-low dot height is a smart inclusion, as it allows seamless co-witnessing with most factory iron sights, so I don’t have to sacrifice my existing setup or struggle with sight alignment. Plus, the sight uses Holosun’s proven K footprint, and the inclusion of an RMR-to-K footprint adapter plate means it fits a broad range of pistols right out of the box. This compatibility factor alone makes it a very user-friendly option.

Performance-wise, the sight is powered by Holosun’s 650nm Red Super LED, which provides a bright and crisp reticle that remains visible in various lighting conditions. I appreciate the Multi-Reticle System (MRS), giving me the flexibility to switch between a 2 MOA dot for precise aiming and a 32 MOA circle for quick target acquisition at shorter distances. This dual reticle option is fantastic because it caters to different shooting scenarios without needing multiple optics. Moreover, the ability to deactivate either reticle element lets me customize the sight picture to my preference, which is a nice touch for personalizing the shooting experience.

Battery life and durability are equally impressive. The sight runs on a CR1620 battery that can last up to 50,000 hours, which means I can rely on it for extended periods without frequent replacements. The IP68 rating reassures me that the sight is both dustproof and waterproof, so it will hold up well in harsh outdoor environments or adverse weather conditions. Additionally, the 7075 T6 aluminum housing and anodized finish provide a rugged yet lightweight construction that can withstand the wear and tear of regular use.

What really caught my attention is the Solar Failsafe feature. It’s comforting to know that if the battery ever fails, the sight can still operate using ambient light, ensuring I’m not left without a functional optic at a critical moment. The automatic brightness adjustment based on lighting conditions enhances usability by keeping the reticle visible but not overpowering, which helps maintain focus and situational awareness.

To give a clear overview, here’s a summary of the key specifications and features

Feature	Details
Reticle	Red 2 MOA Dot & 32 MOA Circle
Light Wavelength	650nm
Magnification	1x (No Magnification)
Eye Relief	Unlimited, Parallax Free
Multi-Reticle System (MRS)	Selectable Dot, Circle, or Both
Power Source	Solar & CR1620 Battery
Battery Life	Up to 50,000 Hours
Brightness Settings	12 Levels (10 Daylight & 2 Night Vision)
Window Size	0.63 x 0.91 inches
Housing Material	7075 T6 Aluminum with Anodized Finish
Adjustment per Click	1.5 MOA
Windage & Elevation Travel	±30 MOA
Durability Rating	IP68 Dust Get It From Amazon Now: Check Price on Amazon & FREE Returns 4. HOLOSUN EPS Carry 6 MOA Dot Reflex Pistol Sight – Waterproof Shake-Awake Enclosed Sight for Subcompact Handguns with RMSc-to-K Footprint Adapter Plate Included (Red 6 MOA Dot (EPS-Carry-RD-6)) When I first came across the HOLOSUN EPS Carry 6 MOA Dot Reflex Pistol Sight, I was immediately intrigued by its design tailored specifically for subcompact handguns. This sight is not just another reflex optic; it’s an enclosed sight system built with a clear understanding of the needs of concealed carry and compact pistol users. The fact that it fits narrower handguns and includes an RMSc-to-K footprint adapter plate means it’s versatile and ready to upgrade a variety of popular subcompact models right out of the box. For anyone who values a clean, unobstructed sight picture, the aspheric lens offers remarkable clarity that enhances target acquisition without distracting distortions. One feature I truly appreciate is the ultra-low dot height of the 6 MOA red dot. This design consideration ensures that the reflex sight coexists harmoniously with most factory iron sights, allowing for seamless transition or backup sighting if needed. The housing, crafted from durable 7075 aluminum with an anodized finish, feels robust and built to withstand the rigors of daily carry, which gives me confidence in its longevity and reliability. Additionally, the built-in rear notch sight adds a layer of practical backup, which is a smart inclusion in a compact optic. Performance-wise, the HOLOSUN EPS Carry-RD-6 excels with its 650nm Red Super LED, delivering a crisp and vibrant 6 MOA dot that is easy to pick up in various lighting conditions. The use of the CR1620 battery powering the sight for up to an astonishing 50,000 hours is a game-changer for anyone who dislikes frequent battery changes. Knowing that the optic can last years on a single battery gives me peace of mind, especially for a carry firearm where reliability is paramount. The Shake Awake technology is another standout feature that personally convinced me of this sight’s thoughtful engineering. It smartly conserves battery life by turning off the LED when the pistol is not in use, yet it instantly reactivates the reticle with even the slightest movement or touch. This means the optic is always ready without me having to worry about switching it on manually or wasting battery life unnecessarily. The customizable timing settings from 10 minutes up to 12 hours add flexibility depending on individual usage patterns, and the option to disable Shake Awake entirely if preferred respects different user preferences. Optical quality is crucial for any reflex sight, and HOLOSUN’s multilayer reflective glass impresses me with its balance of light transmission, glare reduction, and durability. The coatings not only enhance reticle brightness and clarity but also help reduce power consumption, which complements the long battery life perfectly. With parallax-free, unlimited eye relief, I find the sight exceptionally easy and intuitive to use in real-life shooting scenarios, allowing for quick target acquisition without the fuss of precise eye positioning. To give you a clear picture of the HOLOSUN EPS Carry 6 MOA Dot Reflex Pistol Sight’s specifications and key features, here’s a concise table summarizing its strengths Get It From Amazon Now: Check Price on Amazon & FREE Returns How Holosun EPS Battery Type Helps Me I’ve found that the Holosun EPS battery type really enhances my experience with my optic. One of the biggest reasons is its long battery life. I don’t have to worry about constantly changing batteries during important moments, which gives me peace of mind whether I’m at the range or out in the field. This reliability means my sight stays powered up and ready when I need it most. Another thing I appreciate is how easy it is to replace the battery. The design makes swapping out old batteries quick and hassle-free, so I’m not fumbling around or losing time. Plus, the battery type is widely available and affordable, which helps me keep my setup running smoothly without breaking the bank. Overall, using the Holosun EPS battery type has made my shooting experience more consistent and dependable. Buying Guide for Holosun EPS Battery Type Understanding the Holosun EPS Battery When I first looked into Holosun optics, I realized that the EPS battery type is a crucial component for the performance and longevity of my sight. The EPS battery is a specialized power source designed to deliver consistent energy, ensuring my Holosun optic functions reliably under various conditions. Battery Compatibility One of the first things I considered was making sure the battery type is compatible with my specific Holosun model. Different Holosun optics may require different battery types or sizes, so I always double-check the manual or product specifications to confirm the EPS battery fits perfectly without any modifications. Battery Life and Performance I pay close attention to the battery life offered by the EPS type. A longer-lasting battery means less frequent replacements, which is especially important during extended shooting sessions or outdoor activities. The EPS battery is known for stable voltage output, which helps maintain consistent reticle brightness without sudden dimming. Availability and Replacement Before committing to a Holosun optic that uses an EPS battery, I made sure that replacement batteries are readily available. I prefer batteries that are easy to find at local stores or online, so I’m never caught off guard in the field without power. Battery Installation and Maintenance I also considered how easy it is to install and replace the EPS battery. The design should allow for quick swaps without needing special tools, so I can maintain my optic efficiently. Regular maintenance, like checking for corrosion or leaks, helps keep the battery compartment in good shape and prolongs the life of my optic. Environmental Considerations Using the EPS battery type, I keep in mind the environmental conditions I often encounter. Some batteries perform better in extreme temperatures or humid environments. Knowing how the EPS battery handles such conditions helps me choose the right setup for my needs. Cost and Value Lastly, I weigh the cost of the EPS battery against the value it provides. A slightly higher-priced battery that offers longer life and better performance is worth it to me, as it reduces the hassle of frequent replacements and downtime. By focusing on these aspects, I ensure that the Holosun EPS battery type I choose supports my optic’s reliability and overall shooting experience. Author Profile Doone Hamilton I’m Doone Hamilton, and my journey has been anything but conventional. Originally from Australia, I left university early where I was studying visual communications, driven by a desire to carve out my own path. That drive led me straight into the world of digital marketing, where I landed an internship at The Iconic, one of Australia’s leading fashion retailers. Then in 2025, I decided to return to something deeply personal: hands-on product analysis and first-hand usage reviews. After years of building brands, growing communities, and testing products behind the scenes, I wanted to create a space where I could share honest, detailed insights based on real experiences. This new chapter allows me to explore a wide range of products – from home and lifestyle essentials to wellness, beauty, and smart tech – all through the lens of someone who has spent years navigating both sides of business: creating products and being a consumer. 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