The Holosun HM3X-MICRO is a compact magnifier that provides 3x magnification for use behind compatible red dot and reflex optics. It includes a flip-to-side QD mount and supports absolute or lower 1/3 co-witness configurations. The optic offers 2.6-inch eye relief and a 7-degree field of view. A nitrogen-purged, fog-proof design helps maintain performance across changing conditions.