Sights and gun selection offer freedom of choice, but informed analysis is imperative.

This component intricately links to your performance and hunting dependability as the linchpin between success and failure. With many sights saturating the market, the onus lies on the hunter to navigate this landscape astutely.”

And two of the more popular choices are the Holosun 407K and 507K. These sights offer a wide range of features to help you hit your target precisely.

In this article, we explain the difference and how both work. Let’s go.

Holosun 407K

The Holosun 407K is a compact, versatile red dot sight designed for handguns and other firearms. It is known for its lightweight construction, durability, and advanced optics technology. The 407K offers a crisp and clear 2 MOA red dot reticle, which aids in rapid target acquisition and accuracy.

With features like solar power backup, Shake Awake technology, and multiple brightness settings, it’s a reliable choice for casual shooters and professionals. Its tight design and easy installation make it a popular option for enhancing the aiming capabilities of various firearms, particularly compact handguns.

Holosun 507K

The Holosun 507K is a compact and highly versatile red dot sight designed primarily for handguns but suitable for various firearm platforms. Known for its durability and advanced optics technology, the 507K features a crisp and precise 2 MOA dot reticle.

It offers a range of brightness settings and has innovative features like solar power backup and Holosun’s Shake Awake technology, which helps conserve battery life while ensuring quick activation when the firearm is moved.

This optic is popular for those seeking enhanced target acquisition and accuracy in a compact and lightweight package, particularly for concealed carry and personal defense applications.

Holosun 407K Vs 507K – Key Differences

Construction and Durability

They are both made out of high-quality aluminum. The choice of material here is influenced by high-end optics. As they also tend to share aircraft-grade aluminum. In terms of rating, they are rated to be waterproof, shockproof, and fogproof at the same time.

The lens is constructed from glass as well and it’s coated with multiple layers of chemicals to make it immune to fogs and oil. Both of these sights are also scratch resistant to some degree. But they are by no means scratchproof.

In terms of reliability and durability, they are both excellent. They will outlast their warranty period and share a fond memory with you for a long-time!

Battery Life

Holosun often provides battery life estimates in two modes:

  • Shake Awake Mode: Many Holosun sights are equipped with a feature called “Shake Awake,” which activates the sight when it detects motion and puts it to sleep when at rest. In this mode, the sight can have an extended battery life because it conserves power when not in use. Battery life estimates in Shake Awake mode can range from several years to tens of thousands of hours, depending on the model and settings.
  • Constant-On Mode: When the sight is set to a constant-on mode with a specific brightness setting, the battery life will typically be shorter compared to Shake Awake mode. Battery life in constant-on mode can range from several months to several years, depending on the brightness setting and the model.

Both sights are powered by a CR2032 battery, which is easily accessible and replaceable. And they both offer 50k hours of battery life.


In terms of performance, both sights are reliable and accurate. However, the Holosun 507K is slightly more accurate due to its larger window. Additionally, the 507 K’s larger window allows for better target acquisition at longer distances.

Mounting Options

Both models offer a wide variety of mounting options for the shooter. The 407K offers a low-profile mounting opportunity that allows the sight to be mounted directly to the firearm with no additional mounting hardware. It is ideal for handguns or other guns where a low profile is desired.

The 407K also offers a Picatinny rail mount, which allows for a more secure mounting option. The 507K offers the same low-profile mounting option as the 407K and a quick detach mount. It allows easy removal and reinstallation of the sight without removing the mounting hardware.

The 507K also offers a Picatinny rail mount and various other mounting options, including a dovetail mount and a cantilever mount. In conclusion, the Holosun 407K and 507K offer a wide variety of shooting mounting options, allowing for flexibility and customization.


In terms of weight, they have no differences at all. They both share the same 1 ounces housing. Thanks to that, they are both excellent choice for handguns.

Sight Picture

The sight picture is the alignment of the sights with the target. The image seen through the sights is used to aim the firearm.

The Holosun 407K and 507K offer a crisp, clear-sight picture with an adjustable 2 MOA red dot. The 507K has a slightly larger window than the 407K, but both are highly visible and provide an excellent sight picture.

Reticle Options

The 407K offers a 6 MOA dot reticle and a 6 MOA green dot reticle, while the 507K offers a 2 MOA red dot on the center and 32 MOA around it. It also has a variant that has the same reticle but in green.

Both models feature adjustable brightness settings and a battery life of up to 50,000 hours. Both models are also shockproof, waterproof, and fog-proof, making them ideal for use in any environment.

Holosun 407K Vs 507K – Similarities

There are several types of similarities between both of these scopes.

Both sights offer adjustable brightness settings, and a 50,000-hour battery life. They both also share the shake to wake feature and fast target acquisition.

Frequently Asked Questions

Can I manually adjust the brightness settings on these red dot sights?

Yes, the 407K and 507K offer manual brightness adjustment settings.

Do these sights have an automatic brightness adjustment feature?

No, both models doesn’t have an automatic mode that adjusts the brightness based on the ambient lighting conditions.

Are these sights suitable for pistols?

Yes, the Holosun 407K and 507K are designed with pistols in mind. Their compact size and durable construction make them suitable for use on handguns.

Closing Thoughts

The Holosun 407K and 507K are excellent red dot sights for use on firearms. The 407K is a great budget option, while the 507K offers more features and the same battery life. Both sights offer clear glass, a wide field of view, and rugged construction.

Ultimately, the choice between the two comes from personal preference and budget.

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