EK Archery Red Dot Reflex Viewfinder

Viewfinder to mount on 21mm rail

This is the viewfinder that comes in the Cobra R9 Crossbow Deluxe KitIt is mounted on rails 21mm wide.This viewfinder requires a CR2032 battery (included) and adjustment is very easy thanks to two knobs on the back and side of the viewfinder.Length: 11.5 cmWidth: 4.6 cmHeight: 5.5 cmWeight: 58 grams