Constant - Exit Pupil (mm): 0.41 - 0.15 in. - Field of View (Degrees): 18.0 - 3.0 - Field of View @ 100 yards (ft): 95 - 15.9 - Mount Comes With TA51 - Housing Material: Forged Aluminum - Batteries: 1 AA Alkaline or Lithium Battery - Battery Life: 1400 hours continuous use at brightness setting 4 of 6 - Dimensions: 10.05 x 2.51 x 2.73 in. - Focal Plane: First - Adjustment Range: Elevation: 90 MOA total travel; Windage: 90 MOA total travel; Per Revolution: 35 MOA - The Trijicon 1-6x24 VCOG