Walther Competition III Point Sight with Green Illumination. 
 
The Competition III Dot Sight by Walther is a green dot sight designed for competition usage. It has a green illumination and a coated lens, and includes an integrated mount for a picatinny rail.  It is suitable for all 22mm Picatinny/Weaver rails
 
It sports a slim design which permits low line of sight and a 10 MOA green dot.
The sight comes in at 86mm and has dual brightness settings.
 
Green dot sight
Two brightness levels
Parallax adjustable upto 25m
Weight 58 g
Lensdiameter 27 mm
Light point 10 MOA
Overall length 80 mm
Comes with mounting tool and CR2032 battery.