Holosun HE515GM-GR 20mm Green Dot Sight

The Holosun HE515GM-GR is a compact 20mm micro optic engineered for rifle and carbine use. It offers a green Multi‑Reticle System (MRS) that combines a 2 MOA center dot with a 65 MOA circle for fast target alignment and precision holds. The sight includes Shake Awake and Solar Failsafe functionality plus a side-mounted battery tray for tool‑free CR2032 replacement.

Key Specifications

• The tube diameter is 20 mm.
• The reticle provides a 2 MOA dot and a 65 MOA circle.
• Magnification is 1x for parallax-free, unlimited-eye-relief use.
• The power source is a CR2032 battery with a side-mounted tray.
• Battery life is rated up to 50,000 hours (with Solar Failsafe support).
• Length measures 2.44 inches for compact mounting on carbines and rifles.
• Weight is approximately 4.3 oz for minimal added mass.
• Mounting interface is Picatinny/Weaver with a quick-detach lower 1/3 co‑witness option.
• Adjustment increment is 0.50 MOA for windage/elevation tuning.
• Environmental protection includes an IP68-class waterproof/dustproof rating and unlimited eye relief.

Designed for practical use on duty, competition, and sporting platforms, the HE515GM-GR balances compact footprint with a versatile reticle and long battery life. Its quick-detach mounting and intuitive controls make it suitable for shooters who prioritize reliable, low-profile optics that support rapid target acquisition and routine sight adjustments without adding unnecessary bulk.