From the night force website
Magnification Range
5-20x
Focal Plane
Second Focal Plane (F2/SFP)
Body Tube Diameter
30mm
Overall Length
15.2 in/386 mm
Mounting Length
6.5 in/165 mm
Weight
29.1 oz/825 g (non-illum) 30.5 oz/865 g (illum)
Click Value
.250 MO