Gamo 4x15 Aigun Scope with Rings: * Magnification: 4x * Objective lens diameter: 15" * Coating: fully coated * Standard Gamo 30/30 reticle * Exit pupil range: 3.75 * Eye relief: 3" * Field of view at 100 yds: 19 * Diopter compensation: -2/+2 * Twilight factor: 7.74 * Max elevation/windage (ft/100 yds): 30/30 * Tube diameter: 19mm/0.75" * Imported * 1-year manufacturer"s warranty * Model# 621204X15CP