HOLOSUN HE515GM-GR Elite
HOLOSUN HE515GM-GR Micro Sight User Manual
Model: HE515GM-GR Elite
1. Introduction and Overview
The HOLOSUN HE515GM-GR is an ultra-durable 20mm micro sight engineered for demanding rifle and carbine applications. It features a robust 7075 aluminum construction, clear removable/rotating lens caps, and a Quick Detach (QD) lower 1/3 co-witness (1.63") mount. This sight boasts an IP68 certified waterproof and dustproof rating, ensuring reliable performance in various environmental conditions.

Figure 1.1: Front view of the HOLOSUN HE515GM-GR Micro Sight.
Key features include the Multi-Reticle System (MRS) with Green Super LED, 12 reticle intensity settings, Shake Awake technology, and an extended battery life of up to 50,000 hours. The battery is conveniently housed beneath a side-mounted cap for tool-less replacement.
2. What's in the Box
Upon opening your HOLOSUN HE515GM-GR package, please verify that all the following components are included:

Figure 2.1: Illustration of included items.
- Quick Release & Detachable Mount
- CR2032 Battery
- User Manual (this document)
- Lens Cloth
- T10 L Key
3. Setup
3.1 Mounting the Sight
The HE515GM-GR comes with a Quick Detach (QD) lower 1/3 co-witness mount. To attach the sight to your rifle's Picatinny rail:
- Ensure the firearm is unloaded and safe.
- Loosen the QD lever on the mount.
- Position the sight on the desired section of your Picatinny rail.
- Close the QD lever firmly until it locks into place. Ensure the sight is securely attached and does not wobble.
3.2 Battery Installation
The HE515GM-GR is powered by a single CR2032 battery, which provides up to 50,000 hours of operation. The battery compartment is designed for tool-less replacement.

Figure 3.1: Side view illustrating the battery compartment location.
- Locate the battery cap on the side of the sight.
- Unscrew the battery cap counter-clockwise.
- Insert the CR2032 battery with the positive (+) side facing outwards.
- Replace the battery cap and screw it clockwise until it is finger-tight. Do not overtighten.
4. Operating Instructions
4.1 Multi-Reticle System (MRS)
The HE515GM-GR features Holosun's Multi-Reticle System, allowing you to choose between different reticle patterns to suit your preference and shooting scenario.

Figure 4.1: Multi-Reticle System explanation.
The available reticle options are:
- 2 MOA Dot & 65 MOA Circle: This combination provides a fast sight picture for shorter distances. The large circle aids in quick target acquisition and acts as a hold-over reference, guiding your eye to the central 2 MOA dot.
- 2 MOA Dot Only: The large 65 MOA circle can be deactivated, leaving only the 2 MOA dot for an uncluttered sight picture and increased precision, especially at longer ranges.

Figure 4.2: Visual representation of green and red reticle options.
4.2 Brightness Settings
The sight offers 12 reticle intensity settings, including 10 for daylight conditions and 2 for night vision compatibility. Use the '+' and '-' buttons on the top of the sight to adjust the brightness level.
4.3 Shake Awake Technology
Shake Awake Technology is a standard feature that extends battery life by deactivating the optic's LED when not in use. A highly sensitive motion sensor detects movement, instantly reactivating the LED.

Figure 4.3: Shake Awake Technology details.
Shake Awake offers settings from 10 minutes to 12 hours for automatic deactivation, or it can be deactivated altogether if preferred. The slightest touch or movement of the optic will instantly reactivate the LED, ensuring your Holosun sight is ready when needed.
4.4 Super LED Technology
Holosun Super LED technology provides versatile reticle intensity settings from night vision-compatible to daylight bright. Our Super Green LED is specifically designed to match the wavelength of light that the human eye is most reactive to, enhancing visibility and clarity.

Figure 4.4: Super LED Technology explanation.
4.5 Multilayer Reflective Glass
Holosun optical sights and magnifiers utilize optical-quality glass lenses with multilayer coatings. These coatings facilitate maximum light transmission and wear resistance, while reducing glare and minimizing power requirements. Holosun's highly reflective coatings contribute to industry-leading reticle intensity, clarity, and battery efficiency.

Figure 4.5: Multilayer Reflective Glass explanation.
5. Maintenance
5.1 Cleaning
To maintain optimal performance and clarity, regularly clean the lenses and exterior of your sight. Use the provided lens cloth or a soft, lint-free cloth. For stubborn smudges, a small amount of lens cleaning solution designed for optics can be applied to the cloth, not directly to the lens.
- Gently wipe the lenses to remove dust and debris.
- Avoid using abrasive materials or harsh chemicals, as these can damage the lens coatings.
- Clean the exterior housing with a damp cloth as needed.
5.2 Waterproof and Dustproof Rating
The HE515GM-GR is IP68 certified, meaning it is fully protected from dust ingress and can withstand immersion in water up to 1.5 meters for 30 minutes. While designed to be highly durable, avoid unnecessary prolonged submersion or exposure to extreme conditions to ensure longevity.
6. Troubleshooting
If you encounter issues with your HOLOSUN HE515GM-GR Micro Sight, please refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Reticle not visible or dim | Low battery; Brightness setting too low/high; Shake Awake activated. | Replace battery; Adjust brightness using '+' or '-' buttons; Move the sight to reactivate Shake Awake. |
| Sight not holding zero | Mount not secure; Recoil from firearm. | Ensure QD mount is fully tightened; Re-zero the sight after significant recoil or impact. |
| Buttons unresponsive | Battery issue; Environmental factors. | Replace battery; Ensure operating within specified temperature range. |
| Fogging on lens | Rapid temperature change. | Allow sight to acclimate to ambient temperature; Store in a dry environment. |
If the issue persists after attempting these solutions, please contact HOLOSUN customer support for further assistance.
7. Specifications
Detailed technical specifications for the HOLOSUN HE515GM-GR Micro Sight:
| Feature | Specification |
|---|---|
| Brand | HOLOSUN |
| Model Name | HE515GM-GR Elite |
| Color | Green 2 MOA Dot & 65 MOA Circle |
| Reticle Type | 2 MOA Dot with 65 MOA Circle |
| Light Wavelength | 540nm |
| Magnification | 1x |
| Objective Lens Diameter | 20 Millimeters |
| Eye Relief | Unlimited |
| Parallax | Parallax Free |
| Battery Type | CR2032 |
| Battery Life | 50,000 hours |
| Brightness Settings | 10 Daylight & 2 NV |
| Housing Material | 7075 T6 Aluminum |
| Adjustment per Click | 0.5 MOA |
| W&E Travel Range | ±50 MOA |
| Product Dimensions | 3.2"L |
| Item Weight | 12.8 ounces |
| Mounting Type | Dovetail Mount (QD lower 1/3 co-witness) |
| Waterproof Rating | IP68 |
8. Warranty Information
The HOLOSUN HE515GM-GR Micro Sight comes with a Limited Lifetime Warranty. This warranty covers defects in materials and workmanship under normal use. For specific terms, conditions, and limitations of the warranty, please refer to the official HOLOSUN warranty policy available on their website or contact customer support.
Please retain your proof of purchase for warranty claims.
9. Support
For technical assistance, product inquiries, or warranty service, please contact HOLOSUN customer support through their official channels:
- Website: Visit the official HOLOSUN website for FAQs, product registration, and support resources.
- Email: Refer to the HOLOSUN website for their customer service email address.
- Phone: Contact HOLOSUN customer service via the phone number listed on their official website.
When contacting support, please have your product model (HE515GM-GR Elite) and any relevant purchase information ready to expedite the process.
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.







