BSA Bow Hunter 30mm Bow Red Dot Sight, 3-Dot, 3-MOA: * 11-position rheostat * Weaver-style attachment * Magnification: 1X * Field of view at 100 yds: 68 * Parallax setting: 50 yds * Click adjustment value: 1/2 * Adjustment range: 45-45 * Weight: 0.77 oz * Dimensions: 7.0"L x 2.5"W x 9.0"H * Model# BOWRD30CP