Brought you by NcStar, the Red Dot Reflex Sight/Weaver Base has the following specifications: - Magnification: 1X - Objective Diameter(mm): 22x33 - Reticle: Red Dot - Dot Size: 5 MOA - Exterior Finish: Black Plastic - Lens Coating: Clear - Net Weight (oz.): 3 - Lenth (in): 4.73 - Mount: Integrated Weaver style.