Designed to handle the recoil of your toughest magnum these scopes offer fully multi-coated optics for an exceptionally bright view. These 3-12x models have 1/8 MOA windage and elevation adjustments. Waterproof fogproof and shockproof. Covered by the Burris Forever Warranty. – Tube Diameter: 1 – Objective Bell Diameter: 44mm – Ocular Bell Diameter: 38mm – Adjustment Click Value: 1/8 moa – Eye Relief: 9 – 22 – Exit Pupil Diameter: 9.1 – 2.8mm – Field of View at 100 Yards: 14@3x – 4@12x