HOLOSUN HS510C & HM3X Combo User Manual

1. Introduction

This manual provides instructions for the proper setup, operation, and maintenance of your HOLOSUN HS510C Multi-Reticle Circle Dot Open Reflex Sight and HM3X 3x Flip-to-Side Magnifier combo. Please read this manual thoroughly before using the product to ensure safe and effective operation.

2. Safety Information

Always handle firearms and optical devices responsibly. Follow all local and federal laws regarding firearm safety. Ensure the firearm is unloaded and safe before installing, adjusting, or performing maintenance on the sight or magnifier. Never look directly at the sun through the optic, as this can cause permanent eye damage. Keep batteries out of reach of children.

3. Package Contents

Verify that all items are present in your package:

• HOLOSUN HS510C Open Reflex Sight
• HOLOSUN HM3X 3x Flip-to-Side Magnifier
• Quick Detach Mounts (Pre-installed or separate)
• CR2032 Battery (Pre-installed in HS510C)
• Lens Cloth
• T10 L Key
• User Manual

Image: The Holosun HS510C sight, HM3X magnifier, and included tools are shown organized within the protective hard case.

4. Product Features

The HOLOSUN HS510C & HM3X combo offers advanced features for enhanced aiming and target acquisition:

• Multi-Reticle System (MRS): Choose between a 2 MOA dot, a 65 MOA circle, or a 2 MOA dot with 65 MOA circle.
• Solar Failsafe: Automatically adjusts reticle brightness based on ambient light, with battery backup.
• Shake Awake Technology: Powers on the optic upon motion detection and powers off after a period of inactivity to conserve battery.
• Parallax-Free: The reticle remains parallel to the bore regardless of eye position.
• 3x Magnification: The HM3X magnifier provides 3 times optical magnification for extended range engagements.
• Flip-to-Side Mount: The HM3X magnifier can be quickly flipped out of the line of sight when not needed.
• Durable Construction: Both units feature robust housing for reliability in various conditions.

Image: The Holosun HS510C reflex sight and HM3X magnifier are displayed alongside their protective carrying case.

5. Setup

5.1. Battery Installation (HS510C)

1. The HS510C comes with a CR2032 battery pre-installed.
2. To replace, unscrew the battery tray cover on the right side of the sight using the T10 L key.
3. Insert a new CR2032 battery with the positive (+) side facing up.
4. Securely close the battery tray cover.

5.2. Mounting the Sight and Magnifier

Both the HS510C and HM3X utilize quick-detach (QD) mounts designed for Picatinny rails.

1. Ensure the firearm is unloaded and pointed in a safe direction.
2. Loosen the QD lever on both the sight and magnifier mounts.
3. Place the HS510C sight onto the desired section of your Picatinny rail. Position it forward enough to allow space for the magnifier behind it.
4. Close the QD lever. If the mount is too loose or too tight, adjust the tension screw on the opposite side of the lever using the T10 L key until a firm lock is achieved.
5. Place the HM3X magnifier onto the rail directly behind the HS510C. Ensure proper eye relief for comfortable viewing.
6. Close the QD lever for the magnifier, adjusting tension as needed.

Image: The HS510C reflex sight and HM3X magnifier are shown securely mounted on the Picatinny rail of a rifle.

Image: A side profile of the HS510C sight and HM3X magnifier, illustrating their compact combined footprint.

6. Operating

6.1. Power On/Off (HS510C)

• Power On: Press either the '+' or '-' button.
• Power Off: Press both '+' and '-' buttons simultaneously for 3 seconds.

6.2. Brightness Adjustment (HS510C)

• Press the '+' button to increase brightness.
• Press the '-' button to decrease brightness.
• The HS510C has 12 brightness settings, including 2 night vision compatible settings.

6.3. Reticle Selection (HS510C)

Press and hold the '-' button for 3 seconds to cycle through the available reticle options:

• 2 MOA Dot & 65 MOA Circle
• 2 MOA Dot only
• 65 MOA Circle only

6.4. Zeroing the HS510C Sight

Zeroing should be performed at a safe shooting range. Use the included T10 L key for adjustments.

1. Fire a group of shots at your desired zeroing distance.
2. Identify the point of impact relative to your aim point.
3. Use the windage (R/L) and elevation (U/D) adjustment turrets on the sight. Each click adjusts the point of impact by 0.5 MOA.
4. To move the point of impact UP, turn the elevation screw counter-clockwise.
5. To move the point of impact DOWN, turn the elevation screw clockwise.
6. To move the point of impact RIGHT, turn the windage screw counter-clockwise.
7. To move the point of impact LEFT, turn the windage screw clockwise.
8. Repeat firing and adjusting until the point of impact matches your aim point.

Image: The HS510C reflex sight, highlighting the windage and elevation adjustment screws for zeroing.

6.5. Using the HM3X Magnifier

• The HM3X magnifier is designed to be used in conjunction with the HS510C sight.
• To engage magnification, simply push the magnifier from its flipped-to-side position into the inline viewing position behind the HS510C.
• To disengage magnification, push the magnifier to the side until it locks into the flipped-to-side position.
• The diopter adjustment ring on the eyepiece of the HM3X can be rotated to achieve a clear focus for your eye.

Image: An angled view of the HS510C sight and HM3X magnifier, showing the magnifier in its operational position behind the sight.

7. Maintenance

7.1. Cleaning

Use a soft, clean cloth to wipe away dust and debris from the exterior surfaces. For lenses, use a lens cleaning pen or a soft lens cloth with a small amount of lens cleaning solution. Avoid using harsh chemicals or abrasive materials.

7.2. Storage

When not in use, store the sight and magnifier in a dry, cool place, preferably in their protective case. Remove the battery if storing for extended periods (several months or more) to prevent potential leakage.

8. Troubleshooting

• Reticle is dim or not visible:
  • Check battery level and replace if necessary.
  • Adjust brightness settings using the '+' button.
  • Ensure the solar panel is not obstructed if operating in solar mode.
• Reticle appears distorted or blurry:
  • Adjust the diopter on the HM3X magnifier for your vision.
  • Ensure lenses are clean and free of smudges.
  • If using only the HS510C, ensure your eye is focused on the target, not the reticle itself.
• Sight or magnifier is loose on the rail:
  • Tighten the QD lever.
  • Adjust the tension screw on the QD mount using the T10 L key.

9. Specifications

10. Warranty and Support

HOLOSUN products are backed by a limited lifetime warranty on the optics and a limited warranty on electronics and batteries. For specific warranty details, service, or technical support, please visit the official HOLOSUN website or contact their customer service department. Keep your proof of purchase for warranty claims.

For further assistance, please refer to the official HOLOSUN website: www.holosun.com