551 Holographic Sight Scope red/green dot for 20mm rail – Tan

551 Features:
-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: Tan
-Battery: 4 x LR44 batteries
-Dimension: 10 cm (L) x 5cm (W) x 6cm (H)
-About Weight: 220g
-A: brightness adjustment (upward)
-B: brightness adjustment (downward)
-C: Reticule colour switching (Red / Green)