Holosun 403B 2 MOA Red Dot Sight HS403B

  • Manufacturer: Holosun
  • Model: HS403B
  • Reticle: 2 MOA Red Dot
  • Magnification: 1x
  • Power Source: One (1) CR2032
  • Battery Life: 50,000 Hours
  • Dimensions (LxWxH): 2.45″ x 1.43″ x 1.6″
  • Weight: 2.82 oz

$211.75

Out of stock

SKU: 2002164 Category: Tag:

Holosun HS403B Red Dot Sight | HS403B

HS403B is a 20mm micro sight designed for rifle and carbine applications. HS403B features Holosun’s Red Super LED with 50k hour battery life, 10 daylight and 2 night vision compatible reticle intensity settings. Its housing is made from 6061 aluminum and includes both a lower 1/3 co-witness mount (1.63”) and a low mount (.75”) for low-comb height rifle applications.

Additional features include Shake Awake technology, digital buttons for setting changes, rubber lens covers, and a side-mounted battery tray for the 2032 battery. HS403B is a versatile sight for users of all levels.


  • Manufacturer: Holosun
  • Model: HS403B
  • SKU: HS403B
  • UPC: 760921087428
  • Reticle: 2 MOA Red Dot
  • Eye Relief: Unlimited
  • Magnification: 1x
  • Power Source: One (1) CR2032
  • Battery Life: 50000 Hours
  • Brightness Settings: 10 DL, 2 NV
  • Window Size: 20mm Diameter
  • Material: 6061-T6 Aluminum
  • Dimensions (LxWxH): 2.45" x 1.43" x 1.6"
  • Weight: 2.82 oz

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