Description
This green dot micro sight delivers faster target acquisition and reduced eye strain compared to traditional red dots, backed by solar failsafe technology that keeps you operational even when your battery runs low.
Whether you’re engaging targets in bright sunlight or transitioning between indoor and outdoor environments, the HE503CU-GR’s green reticle technology provides enhanced visibility across lighting conditions. The human eye naturally processes green wavelengths more efficiently than red, reducing the strain during extended shooting sessions while offering a crisper sight picture for many shooters with astigmatism. With dual power sources—solar and battery—this optic ensures reliable operation when it matters most, while Shake Awake technology extends your CR2032 battery life to an impressive 50,000 hours by automatically powering down during periods of inactivity.
Key Features
- Green LED Technology: 540nm green super LED offers enhanced visibility in bright conditions and may reduce distortion for shooters with astigmatism compared to red reticles
- Dual Power System: Solar Failsafe automatically switches to solar power when available, providing backup operation if the battery depletes
- Multi-Reticle System (MRS): Switch between 2 MOA dot only, 65 MOA circle only, or combined 2 MOA dot with 65 MOA circle for different shooting scenarios
- Extended Battery Life: Up to 50,000 hours of operation on setting 6 with a single CR2032 battery, enhanced by solar power and Shake Awake motion-sensing technology
Important Compatibility Notes
- Uses Aimpoint Micro (T1/T2) mounting footprint, compatible with a wide range of aftermarket mounts
- Includes both lower 1/3 co-witness mount (1.63″) and low profile mount (0.75″)
- Compatible with 3X magnifiers for extended range applications
- Side-mounted battery tray allows battery changes without removing the optic from your firearm
Why We Carry It
The 503 series represents Holosun’s commitment to bringing premium optic features to shooters at accessible price points. One fascinating aspect of this optic is its green LED wavelength selection at 540nm—specifically chosen because the human eye contains roughly 60% red-sensing cones but only 30% green-sensing cones, making green easier for our eyes to process with less effort. Multiple firearms instructors report using these optics through 12,000+ rounds with consistent zero retention and reliability. The dual-power system represents practical innovation—should your battery fail during a critical moment, natural or artificial light keeps your reticle operational through the solar cell. We stock the HE503CU-GR because it delivers features typically found on optics costing twice as much, making it an excellent choice for defensive rifles, competition use, and range applications.
Frequently Asked Questions
Will the green dot really help with my astigmatism?
Results vary by individual, as astigmatism affects each person differently. Many shooters report that green dots appear crisper than red dots, while others experience minimal difference. The circle-dot reticle option can also help, as the larger 65 MOA circle provides an additional reference point. Additionally, adjusting brightness to lower settings often reduces distortion. Since astigmatism experiences vary, we recommend testing if possible, though many customers with astigmatism have reported positive results with this specific model.
How does the Shake Awake feature work, and can I turn it off?
Shake Awake uses a motion sensor to power the LED on when movement is detected and automatically powers down after 10 minutes of inactivity (adjustable from 10 minutes to 12 hours depending on preference). The slightest touch or movement instantly reactivates the reticle, ensuring your optic is ready when needed. This feature can be completely disabled if you prefer to leave the optic on continuously.
Is this optic durable enough for hard use and larger calibers?
Yes. The HE503CU-GR housing is constructed from 6061-T6 aluminum with MAO (Micro-Arc Oxidation) finish, tested to withstand 1000G of vibration. Users have successfully mounted this optic on .308 rifles, 12-gauge shotguns, and high-round-count training rifles. It’s IP67 rated for dust and water resistance (submersible to 1 meter for 30 minutes).
Spec Sheet
OPTICAL DATA
- Reticle: 2 MOA Dot & 65 MOA Circle
- Light Wavelength: 540nm
- Reticle Color: Green
- Parallax Free: Yes
- Unlimited Eye Relief: Yes
- Magnification: 1x
- Multi-Coatings: Yes
ELECTRONIC DATA
- Power Source: Solar & Battery
- Battery Type: CR2032
- Battery Life (Hours): 50000
- Brightness Setting: 10 DL & 2 NV
PHYSICAL DATA
- Window Size: 20mm Diameter
- Dimension (in): 2.6×1.43×1.6
- Weight (oz): 3
MECHANICAL DATA
- Housing Material: 6061 T6 Aluminum
- Surface Finish: MAO
- Adjustment per Click: 0.5 MOA
- W&E Travel Range: ±50 MOA
ENVIRONMENT DATA
- Storage Temperature: -40℃~70℃
- Working Temperature: -30℃~60℃
- Submersion: IP67
- Vibration: 1000G
Reviews
There are no reviews yet.