UTG 3X Magnifier with Flip-to-side QD Mount, With E Adjustable - Broadband Multi-coated Lens to Provide Crystal Clear 3X Image - Wide Field of View - 30% Bigger Than Comparable Models from Other Brands - Windage/Elevation Adjustability for Optimum View Centering - Innovative Flip-to-Side Mechanism for Quick Transition between 1X and 3X Image - Adjustable Eyepiece for Easy Dioptric Correction - Precision Machining and Anodizing for Maximum Strength and Wear Resistance - Patented Quick-detach Lever Lock Mounting Base - 42mm Center Height for Most Common Dot Sight Combination - Completely Sealed and Nitrogen Filled for Fog/Weather Proof Manufacturer: UTG MFG Number: SCP-MF3WEQS