Holosun 3x Magnifier - Holosun is proud to introduce the best magnifier value on the market today. The HM3X line of magnifiers will allow the operator to seamlessly transition from unmagnified to 3X magnification. The new Holosun HM3X features an adjustable diopter to dial in the desired focus, extremely clear glass, and very generous eye relief. Mounting options include an integrated QD mount with an optional spacer for Absolute Co-witness and Lower Co-witness. Holosun's HM3X comes in a durable Aluminum housing. Flip to the Side design Compatible with Absolute and Lower 1/3 Height Optics QD Mount and Spacer Included IP67 Certified