Holosun HS510C Open Reflex Red Dot Sight (2 MOA Dot / 65 MOA Circle, Solar + QD Mount)
The Holosun HS510C is a 1x open reflex rifle optic with a wide viewing window and a selectable red Multi-Reticle System (2 MOA dot, 65 MOA circle, or circle-dot). It combines Solar Failsafe and Shake Awake with a side-mounted CR2032 battery tray for quick power management without removing the optic.
Built with an aluminum housing and titanium protective hood, the HS510C uses an integrated quick-detach Picatinny mount with an absolute co-witness height (1.41" dot height) and offers 10 daylight plus 2 night-vision compatible brightness settings.