UTG 3X Magnifier Flip To Side QD Picatinny Mount Magnification: 3x - Tube Diameter: 38mm - Objective Diameter: 25mm - Field of View: 45' at 100 yards - Eye Relief: 2 - Exit Pupil: 8.7mm - Length: 112mm - Weight: 10 oz - Optical Coating: Multi-coated - Fog Proof: Yes - Waterproof: Weatherproof - Finish: Black - Mounting System: Picatinny or Weaver - Red dot sight magnifier from Leapers - Broadband multi-coated lenses enhance optical clarity - 3x magnification - Extremely wide field of view - Adjustable eyepiece for improved diopter adjustment - Precision machined and anodized for lasting durability - Flip-to-side mechanism allows a quick transition from 1x to 3x - Equipped with a patent-pending lever lock quick detach mounting base - Sealed and nitrogen-purged for optimum fog proofing and weatherproofing - Comes with elastic lens caps cleaning cloth and owner's manual - Backed by the Leapers 2 year lifetime warranty