You want outstanding performance from a Gen1+ NV rifle scope? Then look no further. Others have said this is the best Gen1 Tube around. They are right. The image and tube quality is outstanding. This scope comes with a MilDot reticle and has a super fine brightness adjustment that makes it a pleasure to use. No fumbling in the dark for small adjustment buttons. Tthis unit is equipped with rotary switches. The soft rubber eyepiece is a delight and those who wear glasses will find no problems. SPECIFICATIONS: Image tube GEN I+ Magnification 2.5x Angle of view 9o Observation range 300 m Light gain 900x Objective lens diameter 50 mm Exit pupil distance 51 mm Focusing limit from 10 m to infinity Diopiter adjustments -4/+4 Supply voltage 3v (2xAA) Reticle Red MilDot IR illuminator built-in Mount type Weaver Temperature -20 to +40oC Overall dimensions 275x100x95 mm Weight 1.1 kg