Trijicon ACOG Enhanced Accuracy 4x Illuminated Green Chevron Scope, TA31FGSpecifications and Features: Adjustment Click Value: 1/2 MOA Adjustment Type: Click Country of Origin: United States of America Exit Pupil Diameter: 8 Millimeter Exposed Turrets: No Eye Relief: 1.5 Inches Fast Focus Eye Piece: No Sun Shade Included: No Turret Height: Medium Turrets Resettable to Zero: No Type: Centerfire Rifle Scopes Warranty: Trijicon Limited Lifetime Waterproof: Yes Zero Stop: No