Barska 6-24x50 AO IR Blackhawk Rifle Scope Field of View (ftat100yds/mat100m): 13.88/4.23at6x, 4.13/1.25at24x Exit Pupil (mm): 1.9-6.5 Eye Relief: 1.9" - 6.5" Reticle: Mil Dot IR Tube Diameter: 1"