In stock
Holosun 403B Micro Red Dot Sight 2 MOA - HS403B
In stock

Holosun 403B Micro Red Dot Sight 2 MOA - HS403B

Regular Price $179.99 Special Price $129.99
SKU 52661
Model Number HS403B
Brand Holosun
UPC 760921087428
Customers must read Compliance Information before purchasing.

Product Details


Light Source: LED
Reticle: 2MOA Dot &amp
Parallax Free: Yes
Unlimited Eye Relief: Yes
Magnification: 1x
Battery Type: CR2032 (sold separately) 
Battery Life: Up to 50,000 hrs
Brightness Settings: 10 Day & 2 Night Vision compatible
Housing Material: 6061 Aluminum with Titanium Hood
Adjustment Per Click: 0.5MOA
Height: 1.63 In
Weight: 4.3 oz


The 403B is a small compact micro red dot optic. Employing Holosun’s LED technology, the lifetime for one CR2032 battery can be up to 5 years. This optic features our “Shake Awake” technology that powers the optic on with slight movement of the 403B. It may be installed on various firearms such as shotguns, pistols, air rifles and crossbows. The HS403B is compatible with standard mounts.

  • Designed for day and night use
  • New advanced technology LED allows up to 50,000 hours of operation on one CR2032 battery (sold separately) 
  • 2 MOA on dot size
  • Reduced training time and ammunition
  • Unlimited field of view
  • Parallax-free with unlimited eye relief
  • Unaffected by extreme weather conditions
  • Durable and reliable construction
  • Low mount and 1/3 Co-witness mount included


Shop Palmetto State Armory for the widest variety and best selection of optics!


Q & A

Retail Stock


Shipping Restrictions

It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.