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.

Features:

• Shake Awake
• Multilayer Reflective Glass
• 2 MOA Dot Reticle
• Up to 50,000 hours Battery Life (Setting 6)
• 12 Brightness Setting: 10 DL & 2NV Compatible
• Convenient Tray Battery Compartment 
• Parallax-Free & Unlimited Eye Relief

In The Box:

• Lower 1/3 Cowitness Mount
• Low Profile Mount
• T10 L Key
• Rubber Cover
• User Manual
• CR2032 Battery
• Lens Cloth