Holosun HS510C Circle Dot Open Reflex Sight

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Holosun HS510C Circle Dot Open Reflex Sight - Available in Black & FDE

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*Please note: Holosun sights on our Canadian store are only available for shipping within Canada.*

The Holosun HS510C Multiple Reticle Red Dot Sight has a streamlined housing design with an open frame for a wide sight picture and minimized obstruction of vision. Advanced LED technology allows up to 20,000 hours battery life for Circle dot or 50,000 hours for dot only.. Always on, it is powered by solar cell under normal usage, and a back-up battery to supplement power requirements in low light conditions. Equipped with a protective titanium alloy hood. 

At the push of a button the reticle can be switched between a 65 MOA circle with 2 MOA dot, or a 2 MOA dot only. The same LED projects both reticles, so no re-zeroing is necessary. The HS510C is waterproof down to 1m and durable enough for even the heaviest calibers. When every shot counts, boost your accuracy and acquire targets swiftly with the Holosun HS510C Parallax Free Red Dot/Circle Sight.

Featured Holosun Technologies:


  • 2 MOA dot and a 65 MOA ring
  • Dot only, Ring only, or Dot and Ring reticle combinations
  • Parallax free, unlimited eye relief.
  • CNC Milled 6061 Aluminum Housing with a Titanium hood.
  • 0.5 MOA Windage & Elevation adjustments per click.
  • 10 day light and 2 night vision compatible reticle brightness settings.
  • Comes with a 1.41" QD mount.
  • Window Size 0.91x1.2 inches (32mm x 24mm).
  • IP67 waterproof rating
  • Limited Lifetime Warranty


*View Holosun Zeroing Target in "PDF's" Tab*

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  • Up to 50,000 hour battery life and Advanced Solar Fail Safe™ technology.
  • Automatic reticle intensity adjustment in Solar Mode.
  • 3 Reticle Options: 65MOA circle and dot, 2MOA dot only and 65MOA circle only
  • Solar Failsafe™ technology.
  • Shake Awake technology automatically turn itself on and recalls the last brightness setting when movement is sensed.
  • Sleep mode entered after sight has not been used or moved for 10 minutes.
  • Low battery warning.
  • Parallax free, unlimited eye relief.
  • IP67 Certified.
  • Working Temperature: -30C to 60C
  • CNC Milled 6061 Aluminum Housing with a Titanium hood.
  • Comes with a 1.41" QD mount.
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