Holosun HS510C Review – Ideal Red Dot Sight with A Large Viewing Area


Over the years, there has been an increase in the number of red dot optics that have been released to the market. Most of the red dots are very similar, while others have small differences that are almost negligible. The Holosun HS510C is one of a kind. It has a great design and appearance. This model also comes with very unique features when compared to many other red dot sights in the market. It is very exciting to use a tool that stands out clearly.

Since 2013, the Holosun manufacturing industry has managed to set a high track record by releasing quality optics with amazing features that often take out the competition. Holosun has pushed the envelope with the Holosun 510C. This is a testament to the great value and quality of the sights produced.

Holosun HS510C red dot sight is one of the most ideal and competitive optics in its category. It is designed with additional features and one of the greatest advantages is its  excellent durability level. When compared to other popular optics in the market, this model is available at a very affordable price. This places the Holosun HS510C ahead of the pack and its amazing performance makes this red dot a favourite amongst shooters.

Holosun HS510C Review and Breakdown

Holosun HS510C 2 MOA Dot Or A 65 MOA Ring Open Reflex Circle Dot Solar Power Holographic Red Dot Sight
  • The Holosun HS510C New advanced technology LED allows up to 50,000 hours of operation on one CR2032...
  • 2 MOA dot and a 65 MOA ring, Dot only, Ring only, or Dot and Ring reticle combinations
  • Unlimited field of view, Titanium-alloyed, shock resistant hood
  • Powered by both battery and solar

The HS510C model has gathered a lot of praise from shooters and the sight deserves all this praise. It is flexible and it is compatible with a number of shooting platforms. These features make the 510c model ready for different types of shooting activities and it is always ready whenever you need it. It also has a rugged design and its reliability makes it possible for the sight to withstand harsh levels of punishment that other red dots cannot.

Hundreds of shooters have given this sight a positive review. Whatever discipline you hold during shooting, the HS510C gives you a chance to shoot much faster, smoothly and in a more precise way than other basic iron sights. This red dot exceeds and in most cases places the standard for the RDS class.

What we liked 

  • The viewing window is quite wide
  • Shooters are provided with three different reticle choices that includes the Holosun Circle Dot
  • The lens are very clear
  • The battery life is quite long
  • It is designed with a shake awake feature that is activated through any kind of motion
  • Makes use of solar power technology
  • Resistant to harmful external factors such as water
  • Comes with a QD Mount of very high quality

What we didn’t like 

  • It is much larger and bulkier than some of the red dots in the market.
  • Mid range price tag

View Price on Amazon

Holosun HS510C Red Dot Specifications 

Holosun HS510C
Reticle Size
Light Settings
Battery Type
CR2032 Lithium Coin
4.94 Oz

Holosun HS510C Red Dot Features


This optic is designed from aluminum material making it light in weight and very strong. It is accompanied with a titanium hood for the window. This additional layer ensures that the window remains protected. Holosun HS510C weighs only 4.94 ounces after having the battery installed.

To increase the frame, the HS510C is manufactured with a Micro Arc Oxidation (MOA) surface treatment finish. This reinforces the frame of the sight allowing it to hold out against a heavy level of impact and heat. This provides the sight with a great resistance to degradation level.

The optic is resistant to dangerous factors such as water and can perform when immersed at a level of one meter for 30 minutes. It can also function properly when exposed to harsh weather conditions. It measures 3.3 x 1.68 x 1.78 inches proving that it is much longer than some other red dot optics. In addition. The red dot is designed with a solar panel failsafe that is very useful. This failsafe extends the battery life way beyond the maximum level of 50,000 hours. The failsafe can also power the red dot sight when you do not have any available batteries. It also works well when there is some level of surrounding light. This proves that the optic is a great option for all kinds of duty and survivalist use.


Holosun HS510C is manufactured with three different reticle selections. There is the 2 Minutes of Angle (MOA), 65 MOA circle as well as the 65 MOA circle that has a 2 MOA dot on the inside. Most shooters mention that the 65 MOA circle comes in handy especially in any kind of situation that requires home defense. The circle gives you the chance to peer right through the reticle for a simpler target acquisition and confirmation.

If you are taking part in mid to long range shooting activities, the 2 MOA dot is a great option. This model comes with 12 different brightness settings. 10 of these settings are different brightness levels that should be used in the daytime, while 2 settings are varying levels for night vision. Holosun also gives users the chance to use the continuous run mode feature. This allows the optic to shift between battery power and solar power. It basically depends on the light conditions in your surrounding environment.

The default power setting for this red dot is set at Autorun mode. If you want to modify your brightness setting, you can make use of the (+) and the (-) buttons that are found on the side of the red dot. The 65 MOA circle as well as the 2 MOA dot are the default reticle settings on this optic. To be able to shift through different reticle options, you should hold down the (-) button for only three seconds.

A CR2032 battery is used to start up this machine. The tray of the battery is found on the side, which is great because you will not have to detach the red dot to replace your battery. When operating at the maximum level, the battery life is estimated to be at 20,000 hours. This battery life is extended courtesy of the solar panel as it serves as a substitute when you are working in proper lighting conditions. As soon as the battery power gets low, the red dot begins to slowly blink alerting the shooter that a brand new battery is required.

Motion sensor technology is yet another great feature that Holosun users make great use of, as it lengthens the battery life of the red dot. After 10 minutes of no motion, the red dot will go off and it will come back on at the final reticle and brightness setting, right before engaging to sleep mode. Shooters can modify this sight to sleep after 10 minute, one hour or 12 hours in no motion.


HS510C is designed with a fast quick release mounting system that can be placed on any type of basic Picatinny rail system without making use of any kind of tools. This factor allows the sight to be easily mounted or removed from your scope, giving shooters the chance to quickly switch from one pistol to another.

A Large Viewing Area 

One of the most distinctive features of the HS510C is the large viewing area that shooters get to use. The design of the viewing area gives shooters a chance to have a great advantage over those using a micro red dot sight. This large viewing area gives you the chance to see a lot more through the red dot and around it. Having the capability to view more of your target is a great advantage especially if you are taking part in tactical shooting activities. The eye relief is limitless giving you a chance to easily come by a target very quickly from any shooting position.

Who is it Best Suited For?

This model is a great choice for all types of hunting activities that require you to fire from a distance.  The Picatinny rails that come with the optic makes it comfortable enough for hunting sport. In addition this HS510C model is also ideal for sports marksmen and authorities such as police officers and fighters in the army.

Are there any alternatives to the Holosun HS510C? 

Yes, there are. One of the best alternatives is the Sightmark Ultra Shot M Spec. If you are looking for a holographic alternative, the EOTech EXPS3 is yet another ideal option.

Features of the Holosun HS510C alternatives 

Sightmark Ultra Shot M Spec
EOTech EXP53
Reticle Size
Weather proof
10.2 Oz
11.2 Oz
4.9 inches
3.8 inches


This Holosun HS510C red dot is one of the most unique optics in the market. It is manufactured with a very large sight window and it also makes use of a battery life that will last forever. The circle dot reticle is yet another excellent addition that makes this a favourite amongst shooters.  Other factors that prove that this optic is a great choice is its amazing quality., the precision and the affordability.


Does the Solar panel of the HS510C recharge the battery? 

No. The battery of this red dot can not be recharged. The solar panel works as a subordinate power mechanism that the red dot will switch to whenever possible. This ensures that the optic will be able to preserve the battery life.

Is the Holosun HS510C model a holographic sight?

No, it is not. This sight is unlike the EOTech 512 model. A reflex sight such as the HS510C makes use of a LED and objective lens. This reflects the reticle, however, a holographic sight makes use of mirrors and laser diodes to safeguard the red dot.


Please enter your comment!
Please enter your name here