BSA Special Series 4-12x40mm Rifle Scope with 30/30 Duplex Reticle and 100-Yard Parallax: * Features: * Fully coated optics * 1/4 MOA W/E adjustments * Fogproof, shockproof, waterproof * Eye relief: 3" * Magnification: 4-12x * Object lens diameter: 40mm * Field of vision at 100 yds: 25-10.5 * Parallax setting: 100 yds * Click adjustment value: 1/4 * Adjustment range: 30-30 * Weight: 12.75 oz * Dimensions: 15.1"L x 2.7"W x 6.1"H * Model# S412X40WRCP