BSA Panoramic Red, Green and Blue Multiple Reticle Sight: * Features: * Black matte finish * Open, multi-recticle design * Magnification: 1X * Object lens diameter: 34x24mm * Parallax setting: 50 yds * Click adjustment value: 1/2 * Adjustment range: 45-45 * Weight: 0.35 oz * Dimensions: 3.5"L x 4.7"W x 2.0"H * Model# PMRGBS