Holosun HM3X Micro 3x Magnifier Flip-to-Side QD
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The Holosun HM3X Micro is a 3x magnifier on an ambidextrous flip-to-side quick-detach mount, in a shortened housing measuring 2.76 × 2.44 × 1.81 in (70 × 62 × 46 mm).
Same 3x reach as the full-size HM3X, in a body that gives back rail space and 8.47 oz (240 g) is all it asks of the rifle.
The housing is 7075 T6 aluminium, nitrogen purged against internal fogging and rated IP67 for dust and water. Optically it gives a 7.1 mm exit pupil, 67 mm (2.64 in) of eye relief and a 7 degree field of view, with ±3 dioptre of focus adjustment for your eye. The supplied spacer sets the mount to 1.41in for absolute co-witness or 1.63in for lower 1/3.
A magnifier earns its place on a rifle that lives at 1x and needs reach occasionally rather than constantly. Flipped in, the sight's own dot is magnified — the magnifier has no reticle and changes nothing about zero. Flipped out, it clears the sight picture entirely, and because the mount is ambidextrous it can be set to swing left or right to suit the shooter. What it cannot do is help a sight that is at the wrong height: match the 1.41in or 1.63in setting to the optic in front of it or the dot will sit off-centre in the view.
It mounts on a Picatinny rail behind a red dot or holographic sight, at whichever of the two heights matches that sight. The full-size version of the same magnifier is the HM3X, and for twice the magnification there is the HM6X. More options sit in red dot magnifiers.
| Magnification | 3x, fixed |
|---|---|
| Exit pupil | 7.1 mm |
| Eye relief | 67 mm (2.64 in) |
| Field of view | 7 degrees |
| Dioptre | ±3 |
| Mount | Ambidextrous flip-to-side QD, 1.41in absolute / 1.63in lower 1/3 |
| Dimensions | 2.76 × 2.44 × 1.81 in (70 × 62 × 46 mm) |
| Weight | 8.47 oz (240 g) |
| Housing | 7075 T6 aluminium, nitrogen purged |
| Sealing | IP67 |
| MPN | HM3X-MICRO |
Magnification you can carry without noticing it until you need it. Order the HM3X Micro today — imported from the USA with all duties paid by us and dispatched tracked from the UK in 7–10 business days, with nothing to pay on delivery.
Explore more: Red Dot Magnifiers, HM3X 3x Magnifier or browse all Holosun
| Brand | Holosun |
|---|---|
| Part no. | HM3X-MICRO |
| Category | Magnifier |
| Barcode | 810047074809 |
£5 tracked UK delivery on every order via Royal Mail Tracked 24. Our products are ordered in from the manufacturer rather than held in UK stock, so please allow 7 to 10 business days (Monday to Friday, excluding bank holidays) from the date of your order for it to reach you. Tracking details are emailed on dispatch. UK delivery only.
You have 30 days from receiving your order to cancel it for any reason, then 14 days to send it back unused and in its original packaging. Faulty, damaged or incorrect items are replaced or refunded and we cover reasonable return postage. Refunds go back to your original payment method within 14 days of receiving the return.
7 to 10 business days from the date of your order. Every order is sent Royal Mail Tracked for a flat £5 and you receive tracking details by email when it is dispatched.
Yes. We list only genuine parts and optics from the brands shown, ordered in from the manufacturer for your order.
Compatibility notes on this page come from the manufacturer. If you are unsure, email us with your make and model before ordering and we will check rather than guess.
Yes. Bundle & Save applies automatically in your basket: 5% off when you buy 2 items, 10% off at 3 items and 15% off at 4 or more. It works across the whole range, so you can mix and match, and there is no code to enter.
Yes — you have 30 days from delivery to cancel for any reason, as long as the item is unused and in its original packaging. See our returns policy for the details.
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