The HS403B is a 20mm micro-optical sight designed for rifle and carbine applications. Features include 12 brightness settings, Holosun’s Super LED with up to 100k hours battery life, and 2 MOA Dot.

Key Features: 

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

Comes with: 

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

OPTICAL DATA

Reticle 2 MOA Dot

Light Wavelength 650nm

Reticle Color Red

Parallax Free Yes

Unlim. Eye Relief  Yes

Magnification 1x

Multi-Coatings Yes

ELECTRONIC DATA

Power Source  Battery

Battery Type CR2032

Battery Life (Hrs) 50000

Brightness Setting  10 DL&2 NV

PHYSICAL DATA

Window Size 20mm Diameter

Dimension (in) 2.45×1.43×1.6

Weight (oz)  2.82

MECHANICAL DATA

Housing Material 6061 T6 Aluminum

Surface Finish MAO

Adjustment per Click 0.5 MOA

W&E Travel Range ±50 MOA

ENVIRONMENT DATA

Storage Temperature -40℃~70℃

Working Temperature -30℃~60℃

Submersion IP67

Vibration 1000G