Emerson / G&P 551 Red/Green Dot Tactical Reflex Sight Scope GP686


Feature:

* 5 M.O.A 10 level brightness level adjustment
* 10 level brightness adjustment Red/Green dot
* Made by aluminum alloy with matt black
* 2 hours auto shutdown after last key used
* Water and shock resistant
* 4x LR44 Alkaline button cell

A-----Power ON and brightness adjustment up
B-----Power ON and brightness adjustment down
A+B--Power OFF, depressing both key at the same time
C-----Reticle color switching (Red/Green)