Holosun HE403B-GR – Red Dot Sight

The Holosun HE403B-GR Red Dot Sight is a compact, durable optic designed for rapid target acquisition on rifles and other firearms. Featuring a 20 mm window, 0.5 MOA adjustment per click, and ±50 MOA travel range, it provides precise aiming in dynamic situations. Built with 6061 T6 aluminum and an MAO surface finish, the sight is IP67 water-resistant and able to withstand 1000 G of energy resistance, ensuring reliable performance in all environments. Lightweight and rugged, the HE403B-GR is ideal for tactical, hunting, and competitive shooting applications.

SPECS:

PHYSICAL SPECS

Window Size – 20 mm Diameter
Dimension (in) – 2.45 × 1.43 × 1.6
Weight (oz) – 2.82

MECHANICAL SPECS

Housing Material – 6061 T6 Aluminum
Surface Finish – MAO
Adjustment per Click – 0.5 MOA
W&E Travel Range – ±50 MOA

ENVIRONMENT SPECS

Storage Temperature – -40℃ ~ 70℃
Working Temperature – -30℃ ~ 60℃
Submersion – IP67
Energy Resistance – 1000 G