Description
The Holosun HM3X is a 3x magnifier designed to mount behind a compatible red dot sight, giving shooters extended reach for mid-range precision while preserving the speed of an unmagnified optic. Its 1.32″ objective and generous 2.75″ eye relief produce a comfortable sight picture with a 37-foot field of view at 100 yards, keeping targets easy to track.
Built around an anodized aluminum housing with a matte black finish, the HM3X is made for hard use. It carries an IP67 waterproof rating and is rated shock and impact resistant, so recoil and harsh weather are non-issues for the optic or its zero.
The integrated quick-detach (QD) mount is ambidextrous and uses a flip-to-side design, letting the shooter swing the magnifier out of the way for close-quarters work and snap it back into place for distance, all without removing the unit from the rail. The mount is compatible with both absolute co-witness and lower 1/3 co-witness heights, making it easy to pair with a wide range of red dot optics.
For precise zeroing, the HM3X provides adjustable windage and elevation with a total adjustment range of 7 degrees, plus an adjustable diopter for fine-tuning the reticle focus to the shooter’s eye. It measures 4.03″ long and weighs 9.8 oz, keeping the added bulk on the host firearm manageable.
