Holosun HS403A Micro Red Dot Sight

Holosun HS403A Micro Red Dot Sight

Regular price $230.00 Sale

The Holosun HS403A Micro Red Dot Sight includes 50,000 hour battery life, is parallax free, and has a durable PEO/MAO finish. Add to this an auto wake feature that automatically turns on the scope when it is moved and an adjustable 8 hour auto-shutoff.

No more bump for the battery! The Holosun HS403A Micro Red Dot Sight has no external battery housing. The battery is hidden in the base where it will rarely need to be changed. This elegant design allows the scope to be simply a tube, allowing the maximum field of vision. Aiming with both eyes is now just a reflex and allows you to have maximum situational awareness.

This scope comes with two mounts, a low profile and a AR height lower 1/3 mount.


  • Front Lens is angled to prevent glare
  • 2 MOA dot size
  • Waterproof rating of IP67
  • Unlimited field of view
  • Parallax-free with unlimited eye relief
  • Unaffected by extreme weather conditions
  • Durable and reliable construction
  • Lowest profile emitter on the market
  • Push button brightness setting
  • Auto shutoff after 8 hours
  • Auto awake to the last setting with movement
  • Includes lower 1/3 AR height mount and low base
  • Weight: 94g (3.8 oz) with the low profile mount and the battery
  • Working temperature: -10 °C to 50 °C (14 °F to 122 °F)
  • Storage temperature: -40 °C to 70 °C (-40°F to 158°F)
  • Objective diameter: 20 mm (glass), 28 mm (ring)
  • Limited Lifetime Warranty

Holsosun HS403A Users Manual

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