The Holosun HM3XT is a fixed 3x magnifier in a titanium housing, carried on a flip-to-side quick-detach mount for use behind a red dot or holographic sight.
Same 3x optics as the aluminium HM3X, in titanium: the housing is the reason to pay the difference, not the glass.
The body measures 3.2 in overall (3.2 x 1.8 x 2.5 in) and weighs 11.6 oz, finished in black and sealed to IPX67. Eye relief is 70 mm (2.75 in) with a 7 degree field of view. Windage and elevation adjust in 0.5 MOA clicks across a range of plus or minus 50 MOA, and the dioptre gives plus or minus 3 dioptres of focus.
A magnifier carries no reticle. It sits behind the sight and enlarges the dot or ring that sight is already projecting, so the zero belongs to the optic in front and nothing changes when the magnifier is flipped out of the way. That flip is the whole point: 1x for close targets, 3x for identification, without touching a magnification ring or losing the sight picture. It has to be matched to the height of the optic ahead of it, so confirm that height before ordering.
Why shooters choose the HM3XT
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Magnification — fixed 3x, with no reticle of its own
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Housing — titanium, lighter and tougher than the aluminium HM3X body
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Mount — quick-detach flip-to-side, so 1x is one thumb movement away
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Focus — adjustable dioptre across plus or minus 3 dioptres
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Alignment — windage and elevation in 0.5 MOA clicks, plus or minus 50 MOA
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Sealing — IPX67 rated, at 11.6 oz
What the HM3XT fits
Any Picatinny rail with clearance behind the sight, at a height that matches the optic in front of it. The aluminium version of the same optic is the HM3X, the smaller body is the HM3X Micro, and for more reach the HM6X at 6x is the step up.
Specifications
| Type |
Flip-to-side magnifier for red dot and holographic sights |
| Magnification |
3x fixed |
| Eye relief |
70 mm (2.75 in) |
| Field of view |
7 degrees |
| Adjustment |
0.5 MOA per click, plus or minus 50 MOA |
| Dioptre |
Plus or minus 3 dioptres |
| Mount |
Flip-to-side quick-detach |
| Housing |
Titanium, black |
| Sealing |
IPX67 |
| Dimensions |
3.2 x 1.8 x 2.5 in |
| Weight |
11.6 oz |
| MPN |
HM3XT |
The titanium option for a build where the magnifier has to survive as much as it magnifies. Order the HM3XT 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, Holosun HM3X or browse all Holosun.
