The Holosun HS402C is an innovative red dot sight with a dual power system. Out of the box, it operates automatically on solar power. The battery power system uses a single CR2032 battery and has an amazing 50,000 hour battery life. The 2 MOA dot reticle automatically adjusts to ambient light and has 10 brightness levels plus two night vision settings. The sight housing is rugged aluminum.

Specifications and Features
Holosun HS402C
Magnification 1x
2 MOA dot reticle
Multicoated lenses
Adjustment click value 1/2 MOA
Field of view unlimited
Parallax free
Automatic solar power
Battery type CR2032
Battery life 50,000 hours
Aluminum housing
Waterproof
Mounts to Picatinny rail
Overall length 5.79"
Weight 11.75 oz
Matte black