Holosun HE510C-GR Elite Green Reflex Sight
Versatile open reflex sight with green dot and 65 MOA circle reticle options. Solar Failsafe and Shake Awake technology, 50,000-hour battery life, and titanium-reinforced aluminum construction for carbines and shotguns.
Holosun HE510C-GR: Professional-Grade Reflex Optics for Modern Shooters
The HE510C-GR represents the pinnacle of reflex sight design for rifle, carbine, and shotgun applications. This open reflex optic combines proven optical principles with modern battery technology to deliver a sight that works when you need it most.
Optical Design and Reticle Options
The HE510C-GR features Holosun's Multi-Reticle System with three selectable options:
- 2 MOA green dot for precision aiming
- 2 MOA green dot with 65 MOA circle for rapid target acquisition
- 65 MOA circle alone for shooters with astigmatism or those preferring a clean sight picture
The 32mm x 24mm open lens design provides unlimited eye relief and minimal obstruction of your field of view. The sight is parallax-free, meaning point of aim remains consistent regardless of eye position—a critical advantage in dynamic shooting situations.
Durability and Construction
Built from aircraft-grade aluminum with a titanium-alloyed protective hood, the HE510C-GR weighs just 4.94 ounces. The titanium hood provides shock resistance essential for hard-use environments. The sight is rated IP67 waterproof, ensuring reliable operation in adverse weather.
Power and Battery Technology
Holosun's dual-power system combines a solar cell with a high-capacity CR1632 battery. At brightness setting 6, the sight delivers up to 50,000 hours of runtime on battery alone. The 12 brightness settings include two night vision compatible modes for low-light operations.
Shake Awake Technology automatically activates the LED upon motion detection and powers down during periods of inactivity, extending battery life. Solar Failsafe ensures the sight remains operational even after battery depletion, providing a backup aiming point when you need it most.
Controls and Mounting
Push-button controls and streamlined housing minimize snags and maintain a low profile. The included quick-detach mount provides absolute co-witness (1.41" dot height). An optional lower 1/3 co-witness spacer is available separately for users who prefer elevated mounting positions.
The Verdict
The HE510C-GR is at home on modern carbines, pistol-caliber carbines, and shotguns. Its combination of optical clarity, battery longevity, and rugged construction makes it a professional choice for serious shooters who demand reliability without compromise.
Features
- multi-reticle system
- 50,0000 hours of battery life (setting 6)
- 12 brightness settings (10 daytime, 2 night vision compatible)
- parallax free with unlimited eye relief
- aluminum with titanium hood
- green multi-reticle system with 2 moa dot, 65 moa circle, or combined circle-dot reticle, 540 nm wavelength
- cr2032 battery, 1 battery, side-loading tray, up to 50,000 hours battery life at setting 6
- solar failsafe, shake awake, automatic brightness, manual brightness, memory, auto-off, and lockout mode
- 1x magnification, parallax-free, unlimited eye relief, multi-coated optics
- 0.91" x 1.26" viewing window, 3.3" x 1.68" x 1.78" body dimensions, 4.94 oz.
- 0.5 moa adjustment per click, +/-50 moa windage and elevation travel
- aluminum housing with titanium hood, mao finish, black
- 10 daylight and 2 night-vision brightness settings, 1.41" absolute co-witness height
- ip67 waterproof, 5000g vibration resistance, -30 degrees c to 60 degrees c working temperature
- includes: absolute co-witness qd mount, cr2032 battery, lens cloth, multi-tool, manual, and warranty card
- fitment: picatinny rail
