Holosun HS403B Micro Red Dot Sight, 2 MOA Red Dot Reticle – FDE


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Holosun HS403B Micro Red Dot Sight, 2 MOA Red Dot Reticle – FDE

Designed for rifle and carbine applications, this HS403B Micro Sight in a flat dark earth housing from Holosun features a 2 MOA red dot reticle and a multicoated lens for clear and unobstructed targeting at close and long ranges. Built with a 6061 T6 aluminum housing, the sight comes with two mounts, including a 1.63″ lower 1/3 co-witness mount and a .75″ low mount for low-comb height rifle applications. The sight’s red Super LED is powered by a CR2032 battery, providing 12 brightness levels including two night-vision settings, and delivering 50,000 hours of battery life.

Optical Performance
  • Unlimited eye relief when using both-eyes-open shooting techniques for complete situational awareness
  • 20mm diameter sight window with multiple layers of antireflective coating on all optics to ensure bright and clear views
Reticle Details
  • 2 MOA aiming dot for closer range targets
  • 1.63″ dot height with included lower 1/3 co-witness mount
  • 12 brightness settings, including two suitable for night vision gear
  • “Shake Awake” technology with last setting recall
Use and Handling
  • .5 MOA adjustment per click impact point correction
  • +/- 50 MOA windage and elevation adjustments
  • .75″ low mount for low-comb height rifle applications
Construction Details
  • Durable 6061 T6 aluminum housing
  • IP67 rated (shock, fog, and waterproof)
  • Included absolute co-witness QD mount
  • Runs up to 50,000 hours on included CR2032 battery



Rangeview Sports Canada
Licensed Gun Store in Newmarket, Ontario



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