Holosun HM3X-MICRO 3x Magnifier with Flip-to-Side QD Mount

The Holosun HM3X-MICRO delivers true 3x magnification in a compact, lightweight housing with a flip-to-side QD mount — 67mm of eye relief, a 7-degree field of view, nitrogen-purged fog-proof optics, and absolute and lower one-third co-witness compatibility for fast transitions between unmagnified and magnified aiming.

The Holosun HM3X-MICRO is a compact 3x rifle magnifier with a flip-to-side QD mount for use with red dot and reflex sights. Magnification: 3x. Eye relief: 67mm. Field of view: 7 degrees. Housing: 6061-T6 aluminum. Construction: nitrogen-purged, fog-proof. Co-witness: absolute and lower 1/3 compatible.

A 3x magnifier extends the practical engagement range of a 1x red dot or reflex sight by magnifying the image the shooter sees through the optic — at 3x, a target that would require significant holdover estimation at 300 yards becomes more clearly resolved and easier to place the dot on accurately. The flip-to-side QD mount allows the magnifier to be swung clear of the sight line in under a second when close-range speed matters and the 1x red dot's wider field of view and both-eyes-open performance are preferable, then flipped back in when the target distance increases. The QD mechanism allows the magnifier to be removed from the mount entirely when not needed. The 67mm of eye relief provides reasonable flexibility in eye position when the magnifier is deployed — the shooter does not need to achieve a precisely consistent cheek weld to maintain full field of view through the magnifier. Compatibility with both absolute co-witness and lower one-third co-witness heights accommodates the broadest range of primary optic mounting heights. Nitrogen purging prevents internal fogging from temperature transitions between environments. The 6061-T6 aluminum housing provides structural durability appropriate for a hard-use rifle platform at a weight appropriate for a secondary optic that is mounted and dismounted regularly.

Magnification: 3x. Mount: flip-to-side QD. Eye relief: 67mm. Field of view: 7 degrees. Co-witness: absolute and lower 1/3 compatible. Housing: 6061-T6 aluminum. Construction: nitrogen-purged, fog-proof.

Flip-to-side QD mount provides sub-second transitions between unmagnified 1x and 3x magnified use. 67mm eye relief allows flexible eye positioning without requiring a precise cheek weld. Compatible with both absolute and lower 1/3 co-witness height configurations. Nitrogen-purged fog-proof construction handles temperature transitions without internal fogging.

The right 3x magnifier for red dot and reflex sight users who want fast flip-to-side transitions and broad co-witness compatibility in a compact 6061-T6 nitrogen-purged package.