Rifle sight 551 Holographic Red Dot Sight with 20mm Rail Mount for Airsoft

Rifle sight 551 Holographic Red Dot Sight with 20mm Rail Mount for Airsoft

-power safe feature, automatic power-off in 2 hours
-Easy to setup, fits any 20mm rail
-Elevation and Leverage adjustment on the side of sight
-Colour: black
-Battery: 4 x LR44 batteries
-Dimension: 10 cm (L) x 5cm (W) x 6cm (H)
-Weight: 220g
-A: brightness adjustment (upward)
-B: brightness adjustment (downward)
-C: Reticle colour switching (Red / Green)