Whats in the Box: Rubber Lens Covers, T10 Torx Multi-Tool, Multi-Height Mount System - Lower 1/3 Co-Witness & Low Mount, Lens Cloth, CR2032 BatterySpecifications and Features: Height: 1.8" Width: 2.0" Length: 3.0" Magnification: 3x Objective Lens Diameter: 21mm Reticle: AR-BDC4 Reticle Color: Red Linear Field of View(@100 Yards): 37.9' Eye Relief: 2.6" Adjustment Graduation: 1 MOA Travel Per Rotation: 42 MOA Total Elevation Adjustment: 250 MOA Total Windage Adjustment: 250 MOA Parallax Setting: 100 yds. Battery Type: CR2032 Optical System: HD Optical System Lens Coating: FMC Waterproof: Yes Fogproof: Nitrogen Purged Shockproof: Yes