Shooting Supplies


View More From



Out of Stock


The HOLOSUN HS510C Red Dot Reflex Sight, is perfect for carbines, PCCs, and shotguns. This durable optic features an aluminium housing with a titanium hood and includes a QD absolute co-witness mount for enhanced resilience and accuracy. The HOLOSUN HM3X Magnifier is a robust aluminium-bodied 3X magnifier that pairs seamlessly with red dot sights. This item comes as a combo


The HOLOSUN HS510C Red Dot Reflex Sight is a top-tier optical solution designed to enhance the capabilities of long guns, including carbines, PCCs (Pistol Caliber Carbines), and shotguns. Its robust and versatile design makes it a valuable addition for both recreational and professional shooters.

Constructed with durability in mind, the HS510C features an aluminium housing complemented by a titanium hood. This combination not only provides significant shock resilience but also ensures the longevity of the sight under various shooting conditions. The sight includes a Quick Detach (QD) absolute co-witness mount with a 1.41” dot height, facilitating easy installation and reliable performance on a wide range of firearms.

The HS510C is packed with Holosun's innovative features. The Solar Failsafe technology is particularly noteworthy, as it allows the sight to remain operational in diverse lighting conditions by harnessing ambient light. In situations where light is insufficient, the sight seamlessly switches to battery power, ensuring constant readiness.

Shake Awake technology further enhances the sight's efficiency. This feature activates the Red Super LED when motion is detected, and deactivates it during periods of inactivity, conserving battery life and ensuring the sight is always ready for action.

The Multi-Reticle System (MRS) offers the flexibility to choose between different reticle options, catering to different shooting preferences and scenarios. This versatility makes the HS510C suitable for a broad range of shooting disciplines.

Equipped with Holosun’s Red Super LED, the sight offers up to 50,000 hours of battery life. It features 10 daylight and 2-night vision compatible intensity settings, providing optimal visibility in various lighting conditions.

For shooters who prefer a higher dot position, a lower 1/3 co-witness spacer is available separately from Holosun dealers. This accessory increases the dot height to 1.63”, offering an alternative mounting option to suit specific needs.

In summary, the HOLOSUN HS510C Red Dot Reflex Sight is an excellent choice for long gun users seeking a high-performance, versatile, and durable optical sight. With features like Solar Failsafe, Shake Awake, MRS, and Red Super LED, this sight is engineered to improve your shooting accuracy and reliability, enhancing your overall shooting experience.

In the Box:

  • Absolute Co-witness QD Mount
  • T10 L Key
  • User Manual
  • CR2032 Battery
  • Lens Cloth


  • MRS: Circle Dot; 2 MOA Dot; 65 MOA Circle
  • Up to 50,000 Hours of Battery Life (Setting 6)
  • 12 Brightness Setting: 10 DL & 2 NV Compatible
  • Convenient Tray Battery Compartment
  • Parallax-free & Unlimited Eye Relief


  • Reticle: 2 MOA Dot & 65 MOA Circle
  • Light Wavelength: 650nm
  • Reticle Colour: Red
  • Parallax Free: Yes
  • Unlimited Eye Relief: Yes
  • Magnification: 1x
  • Multi-Coatings: Yes
  • Power Source: Battery
  • Battery Type: CR2032
  • Battery Life (Hours): 50000
  • Brightness Setting: 10 DL & 2 NV
  • Window Size: 0.91x1.26
  • Dimension (in): 3.3x1.68x1.78
  • Weight (oz): 4.94
  • Housing Material: Aluminum & Titanium Hood
  • Surface Finish: MAO
  • Adjustment per Click: 0.5 MOA
  • W&E Travel Range: ±50 MOA
  • Storage Temperature: -40℃~70℃
  • Working Temperature: -30℃~60℃
  • Submersion: IP67
  • Vibration: 1000G

The HOLOSUN HM3X Magnifier is a state-of-the-art optical tool designed to augment the capabilities of your red dot sight, providing 3X magnification for more accurate long-range targeting. This magnifier is a great choice for shooters who require both close-quarters efficiency and extended-range precision. Featuring a quick-release, flip-to-side mount, and compatibility with both absolute and lower 1/3 co-witness heights for enhanced versatility.

Constructed with a durable aluminium body, the HM3X is built to withstand the rigours of active use in various environments. Its robust design ensures longevity and reliability, making it a valuable addition to any shooter's arsenal.

One of the standout features of the HM3X is its quick-release, ambidextrous, flip-to-side Picatinny rail mount. This versatile mounting system allows for rapid engagement and disengagement, enabling you to switch between magnified and unmagnified views effortlessly. The flip-to-side mechanism is designed for both right and left-handed users, ensuring maximum convenience and ease of use.

Holosun's commitment to compatibility is evident in the inclusion of a spacer with the HM3X. This spacer allows the magnifier to work seamlessly with both absolute and lower 1/3 co-witness dot heights, making it a versatile option for a wide range of firearms and sighting systems.

The HM3X boasts a generous 2.75” of eye relief, providing comfortable viewing and ease of acquisition for shooters of all skill levels. Additionally, the magnifier is IP67-certified water-resistant, offering reliable performance in adverse weather conditions.

Precision zeroing is made simple with the HM3X's windage and elevation adjustments. These adjustments ensure that the magnifier can be finely tuned to align perfectly with your optic's zero. The built-in flat driver tool included with the HM3X makes these adjustments straightforward and hassle-free.

In summary, the HOLOSUN HM3X Magnifier is a feature-packed optical accessory that enhances the functionality of your red dot sight. Whether you're engaged in tactical operations, competitive shooting, or recreational activities, the HM3X provides the magnification, durability, and versatility needed to achieve your shooting objectives with greater accuracy and confidence.


  • Flip to the side design
  • Outstanding Specification & Clarity
  • QD Mount & Spacer included
  • IP67 Waterproof


  • Window Size: N/A
  • Dimension (in): 4 x 1.7 x 2.5
  • Weight (oz): 9.8
  • Housing Material: Durable Aluminum
  • Surface Finish: MAO
  • Adjustment per Click: N/A
  • W&E Travel Range: N/A
  • Storage Temperature: -20℃~65℃
  • Working Temperature: -20℃~51℃
  • Submersion: IP67
  • Vibration: 1000G
  • Transmittance: 75%
  • Diopter: ±3D
  • Field of View: 7 Degree
  • Eye Relief: 70mm
  • Exit Pupil: 7.6mm
  • Magnification: 3X