Holosun 509T Vs Holosun 507C

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I’m diving deep into a head to head comparison of two popular red dot sights: the Holosun 509T Vs Holosun 507C. 

As someone who spends much time at the range and in various shooting scenarios, I understand how crucial it is to have a reliable sight. 

It’s not just about hitting your target; it’s about confidence and consistency in your gear. So, I took both sights out into the field, putting them through their paces. 

From quick target acquisition to battery life and ease of use, I’ve scrutinized every aspect to help you make an informed choice. 

FeatureHolosun 509THolosun 507C
Multi-Reticle System (MRS)32 MOA Circle, 2 MOA DotCircle Dot, 2 MOA Dot, 32 MOA Circle
Shake Awake TechnologyYesYes
Solar FailsafeYesYes
Battery Life50,000 hours50,000 hours
Power SourceSolar & Battery (CR1632)Solar & Battery (CR1632)
Brightness Settings10 DL & 2 NV10 DL & 2 NV
Window Size0.66×0.90.63×0.91
Weight1.76 Ounces1.5 Ounces
W&E Travel Range±30 MOA±50 MOA

Overview of Holosun 509T

The Holosun 509T is a robust reflex sight known for its advanced features and reliability in various shooting conditions.


  • Multi-Reticle System (MRS): 32 MOA circle with 2 MOA dot
  • Shake Awake Technology
  • Solar Failsafe
  • Reticle: 2 MOA Dot & 32 MOA Circle
  • Light Wavelength: 650nm
  • Magnification: 1x
  • Parallax Free & Unlimited Eye Relief
  • Power Source: Solar & Battery (CR1632)
  • Battery Life: 50000 hours
  • Brightness Settings: 10 DL & 2 NV
  • Window Size: 0.66×0.9
  • Adjustment per Click: 1 MOA
  • W&E Travel Range: ±30 MOA
  • Weight: 1.76 Ounces

Overview of Holosun 507C

The Holosun 507C X2, designed for full-sized pistols, is a dynamic choice for shooters looking for a durable and efficient optical sight.


  • Multi-Reticle System (MRS): Circle Dot, 2 MOA Dot, 32 MOA Circle
  • Red Super LED
  • Solar Failsafe
  • Parallax Free & Unlimited Eye Relief
  • Magnification: 1x
  • Multi-Coatings
  • Power Source: Solar & Battery (CR1632)
  • Battery Life: 50000 hours
  • Brightness Settings: 10 DL & 2 NV
  • Window Size: 0.63×0.91
  • Dimensions: 1.78×1.15×1.15 inches
  • Weight: 1.5 ounces
  • Housing Material: 7075 T6 Aluminum
  • Adjustment per Click: 1 MOA
  • W&E Travel Range: ±50 MOA

Features Comparison of Holosun 509T Vs 507C

1. Multi-Reticle System (MRS)

Holosun 509T

The 509T’s MRS is a game-changer. It offers versatility with a 32 MOA circle and a 2 MOA dot. Out in the field, I found the large circle superb for quick targeting at shorter ranges. 

It’s a real asset when you’re trying to make rapid follow-up shots. The ability to switch to just the 2 MOA dot, offering a cleaner view for longer shots, is incredibly useful. It’s like having two sights in one. 

The transition is seamless, and the sight picture remains crisp and clear, a real plus when shooting in diverse scenarios.

Holosun 507C

The 507C also packs a punch with its MRS. The options between a circle dot and a 2 MOA dot, similar to the 509T, are handy. However, during my tests, I noticed the 507C’s reticle was slightly less crisp than the 509T, especially at longer distances. 

The reticle’s versatility is still commendable, providing a good balance for both quick target acquisition and precision shooting. It’s reliable, but when it comes to the finest clarity, it’s a close second.


Holosun 509T wins in this category. Its reticle is just a bit sharper and more versatile, especially at varying ranges.

2. Shake Awake Technology

Holosun 509T

The Shake Awake feature in the 509T is impressive. During my field tests, I loved how it extended the battery life by shutting off when not in use. The customization options for reactivation time are a thoughtful touch.

It’s responsive, too; the slightest movement wakes it up, ensuring it’s ready when you need it. This feature adds a layer of convenience and reliability, especially during long days at the range or in the field.

Holosun 507C

The 507C’s Shake Awake is equally effective. It’s a great power-saving feature, and its sensitivity to movement is top-notch. In practice, it’s hard to differentiate between the 509T and 507C in this aspect. 

Both perform exceptionally well, providing peace of mind that your sight will be ready at a moment’s notice. It’s a feature that once you get used to, you can’t imagine living without.


It’s a tie. Both sights excel in this feature, offering reliability and convenience.

3. Solar Failsafe

Holosun 509T

Solar Failsafe on the 509T is a standout feature. When testing in varying light conditions, I appreciated how the auto-adjusting reticle brightness helped maintain visibility without manual adjustments. 

The backup solar power gives an added layer of security, ensuring that even if the battery runs low, you’re not left in the lurch. This feature shone especially bright during a long outdoor session, keeping the sight operational all day.

Holosun 507C

The 507C’s Solar Failsafe performs admirably as well. Just like the 509T, it adapts to changing light conditions, which is crucial for shooting in different environments. 

The solar backup is a lifesaver, especially if you forget to check your battery before heading out. In my testing, it responded well to both natural and artificial light, providing consistent performance throughout.


Again, it’s a tie. Both sights offer exceptional performance with their Solar Failsafe feature, ensuring reliability in various lighting conditions.

4. Battery Life and Power Efficiency

Holosun 509T 

The 509T’s battery life is outstanding. With a lifespan of around 50,000 hours, it’s a workhorse. In the field, I barely had to worry about the battery dying on me. This reliability is a massive advantage for long shooting sessions or when you’re out in remote areas. 

The combination of solar power and the CR1632 battery means that even in extended periods of use, the 509T keeps going strong. The solar panel is more than a gimmick; it genuinely extends the battery life, especially in bright conditions.

Holosun 507C

Similarly, the 507C offers an impressive 50,000 hours of battery life. The solar panel integration works well, ensuring that the sight remains operational even when the battery starts to wane. During my tests, I found it equally reliable. 

The solar feature is effective and kicks in seamlessly when needed, providing that extra bit of juice to keep the sight running.


It’s a tie. Both models excel in battery life and power efficiency, making them dependable choices for prolonged use.

5. Physical Build and Durability

Holosun 509T

The physical build of the 509T is robust. It feels solid in the hand, and its performance in rugged conditions is commendable. The sight’s durability was evident during testing; it handled various environmental stressors well, from dust to moisture. 

The housing material ensures that it can withstand the rigors of active shooting, whether for sport or in the field. Its resilience is a standout feature, giving you confidence in its longevity.

Holosun 507C

The 507C, with its 7075 Aluminum housing, is built like a tank. It’s durable and withstands rough handling and challenging conditions. During my testing, it held up well against impacts and environmental factors. 

The anodized surface finish not only looks good but adds an extra layer of protection. It’s clear that this sight is built to last, and I was impressed with how it maintained performance despite the tough treatment.


Holosun 507C is a clear winner. Its robust aluminum housing gives it a slight edge in durability, especially under harsh conditions.

6. User Interface and Ergonomics

Holosun 509T

The user interface of the 509T is intuitive and straightforward. Adjustments are easy to make, and the controls are accessible. However, during testing, I found that when shooting directly into the sun, the dot could become a bit fuzzy and washed out. 

This can be a bit of a drawback in bright conditions. In terms of ergonomics, the sight feels comfortable and balances well on various firearms.

Holosun 507C

The 507C scores high on user-friendliness. The controls are well-placed, making adjustments a breeze. However, a notable problem for me was powering down the sight.

As someone with small hands, pressing both buttons simultaneously to shut it off was a bit tricky. It’s a minor gripe but something to consider if you prefer a more straightforward shutdown process.


Holosun 509T wins despite the slight fuzziness in bright sunlight, its overall ease of use and better ergonomics give it the upper hand.

Pros & Cons of Holosun 509T


  • Multi-Reticle System (MRS) offers versatile sighting options.
  • Shake Awake Technology saves battery life effectively.
  • Solar Failsafe ensures functionality even when the battery is low.
  • Parallax Free & Unlimited Eye Relief for comfortable use.
  • Impressive battery life of up to 50,000 hours.
  • Brightness settings are adaptable to different light conditions.
  • Compact and lightweight design at 1.76 ounces.


Pros & Cons of Holosun 507C


  • Multi-Reticle System (MRS) for various shooting scenarios.
  • Solar Failsafe and battery power for consistent operation.
  • Long battery life (up to 50,000 hours).
  • Parallax-free viewing with unlimited eye relief.
  • Durable 7075 T6 Aluminum housing.
  • Convenient tray battery compartment.
  • Lightweight at 1.5 ounces.


  • Open emitter design attracts dirt

Similarities Between Holosun 509T & Holosun 507C

  • Both have a Multi-Reticle System (MRS).
  • Each uses Solar Failsafe and battery power sources.
  • Similar battery life of approximately 50,000 hours.
  • Both offer Parallax Free & Unlimited Eye Relief.
  • Each has a 1x magnification level.
  • Red reticle color with a 650nm light wavelength.

Differences Between Holosun 509T & Holosun 507C

  • 509T is slightly heavier at 1.76 ounces compared to 507C’s 1.5 ounces.
  • 509T has a slightly larger window size (0.66×0.9) compared to 507C’s (0.63×0.91).
  • 507C has a more durable 7075 T6 Aluminum housing.
  • 509T’s adjustment per click is within a ±30 MOA range, whereas 507C is ±50 MOA.

Final Verdict & My Choice

After thorough testing and comparison of the Holosun 509T and Holosun 507C, my choice leans towards the Holosun 509T. 

This decision is rooted not just in the specifics of their features but in the overall experience and performance of the sights. The 509T’s slightly superior reticle clarity and versatility, particularly in varied ranges, set it apart. 

While both models are exceptional in their own rights, the 509T’s combination of advanced technology, reliability, and user-friendliness makes it a more appealing choice for a wide range of shooting applications. It stands out as a more adaptable and efficient companion for both competitive shooting and casual range visits.


What is the difference between Holosun 507C and 508T?

The Holosun 508T X2 features a square window and titanium housing, offering greater durability than the 7075 T6 Aluminum housing of the 507C X2.

What’s the difference between Holosun 507C and 507K?

The main difference is the presence of a solar panel on the 507C, which the 507K lacks, impacting the battery power management.

What is the difference between 508T and 509T?

The 509T X2 has an enclosed emitter and a clamping mechanism design, while the 508T X2 has an open emitter and an RMR footprint.

Is the Holosun 507C waterproof?

Yes, the Holosun 507C is IP67 certified waterproof.

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