Holosun 510C Vs EOTech EXPS2

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As a shooter with a keen eye for detail and performance, I’ve spent considerable time in the field putting two renowned red dot sights through their paces: the Holosun 510C Vs EOTECH EXPS2. 

This comparison is more than just a technical review; it’s an in-depth exploration of how these optics stand up to the rigorous demands of shooting, aiming to crown a champion based on real-world application. 

Join me as we dive into the specifics, examining each sight’s strengths and weaknesses, to uncover which red dot sight reigns supreme for shooters in 2024.

FeatureHolosun HS510CEOTECH EXPS2
Weight8.3 ounces11.2 ounces
Size3.3 x 1.68 x 1.78 inches3.8 x 2.3 x 2.9 inches
Battery Life50,000 hours1,000 continuous hours at nominal setting 12 at room temperature
ReticleMulti-Reticle System (65 MOA circle and 2 MOA dot)68 MOA ring and 1 MOA dot reticle
MountQuick detach mountMountable to 1″ Weaver or MIL-STD-1913 rail

Overview of Holosun 510C

The Holosun HS510C stands out with its durable construction and innovative features, aimed at providing a reliable and efficient shooting experience.


  • Weight: 8.3 ounces
  • Dimensions: 3.3×1.68×1.78 inches
  • Multi-Reticle System (MRS)
  • Solar Failsafe
  • Shake Awake technology
  • Aluminum housing and titanium hood
  • Battery life of 50,000 hours

Overview of EOTECH EXPS2

The EOTECH EXPS2 is designed for speed and precision, featuring a compact design and advanced holographic technology for quick target acquisition.


  • Weight: 11.2oz (317.5g)
  • Dimensions: 3.8″ x 2.3″ x 2.9″ (96.5 x 58.4 x 73.7 mm)
  • Side Button Operation
  • Quick Detach lever fits 1″ Weaver and MIL-STD 1913 Rails
  • 20 brightness settings
  • 10ft. water-resistant depth
  • Windage & Elevation Adjustment: 0.5 MOA per click
  • Power Source: 1 x CR123 battery
  • Battery Life: 1,000 continuous hours at room temperature

Features Comparison: Holosun 510C VS EOTECH EXPS2

1. Optical Quality and Clarity

Holosun 510C

The Holosun HS510C’s optical quality really shines with its crisp glass and innovative Multi-Reticle System (MRS).

In my testing, the sight’s clarity was exceptional, providing sharp, bright images even in challenging lighting conditions. 

Switching between the 65 MOA circle and the 2 MOA dot was seamless, offering versatility for various shooting scenarios. 

However, at higher brightness settings, I noticed a red splash on the glass, which was a bit distracting, especially in low-light environments. Despite this, the overall optical performance was impressive, particularly at this price point.


The EOTECH EXPS2 boasts holographic technology, offering lightning-fast target acquisition with its 68 MOA ring and 1 MOA dot reticle. 

During my field tests, the EXPS2 provided an uncompromised targeting experience, with the holographic sight delivering clear and precise images under all lighting conditions. 

The holographic design meant no noticeable distortion or red splash, even at the highest brightness settings. This superior optical fidelity made target acquisition instantaneous and intuitive, enhancing my shooting accuracy significantly.


EOTECH EXPS2 excels in this feature, offering unmatched optical clarity and precision compared to the Holosun 510C.

2. Durability and Build Quality

Holosun 510C

The HS510C’s durability is noteworthy, featuring an aluminum housing and titanium hood. 

Throughout my rigorous testing, which included exposure to various weather conditions and rough handling, the sight remained solid and functional. 

Its resilience to shock and wear was commendable, showcasing its build quality. Despite multiple mounts and remounts, the HS510C held zero admirably, showing no signs of functional degradation. 

This level of durability, especially given its modest price point, provided a sense of reliability that any shooter would appreciate.


The EXPS2 is engineered for toughness, designed to meet the rugged demands of serious precision shooters.

 In my testing, it lived up to its reputation, handling every challenge thrown at it. The holographic sight’s construction is robust, withstanding impacts, water immersion up to 10ft, and extreme environmental conditions without faltering. 

Its quick-detach lever and solid mount kept the sight securely attached to the rail, maintaining accuracy and reliability throughout the testing period. This sight proved to be an indestructible companion, ready for any scenario.


It’s a tough call, but EOTECH EXPS2 edges out slightly in durability and build quality, demonstrating exceptional resilience and reliability in the most demanding conditions.

3. Battery Life and Power Efficiency

Holosun 510C

The HS510C impresses with its battery life, boasting up to 50,000 hours thanks to its efficient solar power feature and a CR2032 battery. 

The Shake Awake technology further enhances its power efficiency, ensuring the sight is only active when necessary. Throughout my testing, I never had to worry about the sight dying on me, a testament to its reliability. 

This feature is particularly valuable for extended periods in the field, reducing the need for frequent battery changes.


While the EXPS2 offers a solid battery life of 1,000 continuous hours at nominal setting 12, it doesn’t match the Holosun in terms of longevity. 

Powered by a single CR123 battery, it lacks the solar backup that gives the HS510C an edge. However, its efficient power management and multiple brightness settings ensure that the sight remains operational for a significant duration.

In my experience, the battery life was more than adequate for regular use, though it requires more frequent attention compared to the Holosun.


Holosun 510C excels in this feature, offering exceptional battery life and power efficiency, making it more suitable for shooters who spend long hours in the field.

4. Ease of Use and Installation

Holosun 510C

The ease of use of the Holosun HS510C is one of its strongest selling points. Installation is a breeze with its quick-detach (QD) mount system, which allows for rapid mounting and removal without compromising stability or accuracy.

In my field tests, adjusting settings and toggling between the reticles was intuitive, thanks to the user-friendly interface. The Shake Awake technology further simplifies operation by automatically deactivating the sight in periods of inactivity and instantly reactivating upon movement. 


The EOTECH EXPS2 also scores highly on ease of use, featuring side button operation that allows quick adjustments and a compact design that doesn’t hog rail space. 

Its quick-detach lever is robust and ensures the sight can be easily attached or detached from the rail, providing flexibility for shooters who frequently switch optics between platforms.


It’s a close call, but the Holosun 510C narrowly edges out as the winner in this category due to its additional Shake Awake feature and solar power option, which slightly outpaces the EOTECH EXPS2 in terms of convenience and power management, despite the need for a tool for adjustments.

5. Price and Value

Holosun 510C

When it comes to price and value, the Holosun HS510C presents a compelling argument. It offers a suite of advanced features like a Multi-Reticle System, Solar Failsafe, and Shake Awake technology, which are typically found in more expensive models. 

During my testing, the sight’s performance felt on par with higher-priced competitors, making it an excellent investment for shooters looking for quality without breaking the bank


The EOTECH EXPS2, while more expensive, offers unique holographic technology that justifies its higher price tag for many shooters.

Its durability, precision, and the prestige of the EOTECH brand contribute to its value proposition. In my hands-on experience, the EXPS2’s performance in various shooting conditions was exceptional, offering clear advantages in target acquisition speed and accuracy. 


Considering price and overall value, the Holosun 510C takes the lead. It offers an excellent balance of features, performance, and affordability, making it a more accessible option for a broader audience without significant compromises in quality or capability.

6. Reticle Versatility and Clarity

Holosun 510C

The HS510C’s Multi-Reticle System (MRS) allows users to switch between a 65 MOA circle with a 2 MOA dot and a single 2 MOA dot, providing versatility for various shooting scenarios. 

This feature was incredibly useful during testing, adapting to different distances and target sizes quickly. However, the sight’s clarity at higher brightness settings was slightly compromised by a red splash effect, which could be distracting under certain conditions. 

Despite this, the reticle’s sharpness and ease of acquisition under most lighting conditions were commendable.


The holographic reticle of the EXPS2, featuring a 68 MOA ring and a 1 MOA dot, offers unparalleled clarity and precision. 

The holographic technology allows for a more refined reticle image, which I found to be extremely clear and easy to use for quick target acquisition. 


The EOTECH EXPS2 excels in this feature, with its holographic reticle offering superior clarity and versatility compared to the HS510C. The precision and consistency of the EXPS2’s reticle across various conditions make it the clear choice for shooters prioritizing reticle performance.

Final Verdict

After thoroughly testing both the Holosun 510C and EOTECH EXPS2, the EOTECH EXPS2 emerges as the winner for me. Its unparalleled optical clarity, precision, and durability in the most demanding conditions set it apart. 

While the Holosun 510C offers great value and versatility, the EXPS2’s superior holographic technology provides a distinct advantage in accuracy and speed of target acquisition. 

For shooters prioritizing top-tier performance and are willing to invest in their gear, the EOTECH EXPS2 stands out as the best choice.


Is Holosun better than EOTech?

While Holosun offers great value, EOTech’s superior optical clarity and precision make it the better choice for those willing to invest more.

Is Holosun 510C waterproof?

Yes, the Holosun 510C is waterproof, making it reliable in various environmental conditions.

What is the difference between HE512C and 510C?

The main difference is the 512C has an enclosed emitter, offering added protection but at a slight increase in weight compared to the 510C.

Is Holosun 510C night vision compatible?

Yes, the Holosun 510C includes settings that are compatible with night vision, enhancing its versatility.

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