The Holosun HS510C Open Reflex Circle Dot Sight has an open frame for a wide sight picture. Always on, the HS510C it is powered by solar cell under normal usage, and a back-up battery to supplement power requirements in low light conditions. The reticle of the Holosun HS510C can be switched between a 65 MOA circle with 2 MOA dot, or a 2 MOA dot only at the push of a button. Better yet, the same LED projects both reticles, so no re-zeroing is necessary.


  • Parallax free optical design, with unlimited eye relief
  • Minimized obstruction of vision with push button controls and a streamlined housing design
  • Switchable circle/dot and red dot reticles
  • Always on unless manually turned off
  • Internal battery tray design
  • Large 32 mm x 24 mm lens
  • Solar cell and high capacity battery provide dual power supplies
  • Shock resistant titanium alloy protective hood
  • Quick release mount
  • Adaptable to Picatinny and Weaver rails
  • CNC machined 6061-T6 aluminum housing

Holosun HS510C HUD Solar Powered Circle Dot Sight

  • Specifications


    Battery Type:  CR2032 3V Lithium Coin

    Brand:  Holosun

    Brightness:  9 Settings

    Click Value:  1/2 MOA

    Finish:  Hardcoat Anodized

    Manufacturer:  .Holosun

    Material:  Aluminum - 6061-T6

    Night Vision Compatible:  Yes

    Reticle:  65 MOA Circle 2 MOA Dot

    Reticle Color:  Red

    Size:  Full Size

    Warranty:  limited lifetime

    Weight:  4.9 Oz.