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Questions & Answers
Will this work with Holosun 510c Featured Answer

yes this will work with any absolute co witness or lower 1/3rd co witness.

by KIRKN8R, Verified Owner, April 8, 2019
Will this magnifier work with a holosun hs506 ? Expert Answer

Yes, the magnifier will work with that red dot.

by Armando R., Gear Expert, March 13, 2020
Customer Reviews
Expert Review
Great glass for a reasonable price by Julia, Gear Expert, December 15, 2020
I've had this mounted for about a year now and really like it. Pairs well with a red dot for longer shots as well as for target identification for people with relatively poor vision like myself. Seems very durable, and I haven't had any issues with t...
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11/11 found this helpful
Helpful Positive Review AWESOME MAGNIFIER by Jason Peterson, Verified Owner, June 21, 2025
I put this on my son's 300 blackout that I built for him since his passing and I tell you what... where has this been the whole time I've been shooting. I had a friend of mine with me and he said that he needs one for his rifle now as well. Highly re...
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1/1 found this helpful
Helpful Positive Review Eotech magnifier level of clear by ArizonaGuns, April 13, 2019
this thing is so clear. bought it at my ffl dealer shop when I was picking up my aero a4 lower and saw this beauty for 199. I asked him if I could take a look at it and he told me he had just put it on display a half hour ago. I jumped all over it. ...
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54/57 found this helpful
Helpful Positive Review Worth every dollar by Dalton Wells, Verified Owner, June 9, 2025
For the money you can't go wrong with Holoson. Durability and performance is on point. It doesn't match up to a 1-8 lvpo but its not ment to. This is 100 yard in nail driving enhancer. Especially for 300 blk because really!? If you want a quality mon...
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1/1 found this helpful
Helpful Positive Review HM3X Solid Choice for 3x by CC, Verified Owner, March 23, 2025
I got the HM3x to magnify my HS515GM red dot. It comes with a QD mount that flips to the right, you can reverse this to flip left (this let it fit with magpul mbus rear sight - the mbus adjustment screw gets in the way flipping right). The flip act...
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1/1 found this helpful
Helpful Positive Review Excellent product! by Ed, Verified Owner, December 3, 2024
Bought this to work with Holosun’s DRS-TH optic and it lined up perfectly using the included riser with this magnifier. Flip to side is solid and looks like it will work as advertised.
2/2 found this helpful
Read All 134 Reviews
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Included Accessories: QD Mount and Spacer Height: 2.4 inColor: Black Condition: New

Code: 28Y-RDM-HM3XTRDM-HM3X

MPN: HM3X

UPC: 605930625271

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Product Info for Holosun HM3X 3x Red Dot Sight Magnifier

The HM3X is an aluminum bodied 3X magnifier designed for use in conjunction with a red dot sight. The HM3X is feature-packed and includes a quick release, ambidextrous, flip-to-side Picatinny rail mount. Holosun includes a spacer with the HM3X that provides compatibility with absolute and lower 1/3 co-witness dot heights for maximum compatibility. The HM3X has a generous 2.75” of eye relief, is IP67 certified water resistant, and includes windage and elevation adjustment for precision zeroing to your optic’s zero. The HM3X also includes a built-in flat driver tool for easy adjustments.image

Specifications for Holosun HM3X 3x Red Dot Sight Magnifier:

Manufacturer: Holosun
Finish: Aluminum
Magnification: 3 x
Eye Relief: 2.75 in
Length: 3.9 in
Weight: 9.8 oz
Field of View, Linear: 37 ft at 100 yds
Field of View, Angle: 7 degrees
Weather Resistance: Yes
Fabric/Material: Aluminum
Included Accessories: QD Mount and Spacer
Width: 1.6 in
Height: 2.4 in
Color: Black
Operating Temperature: -22 - 140 Fahrenheit
Exit Pupil: 0.29 in
Diopter Adjustment Range: -3 - 3 dpt
Condition: New
Water Resistance Level: IP67
Lens Material: Optical Glass
Storage Temperature: -40 - 158 Fahrenheit
Magnification Type: Fixed

Features of Holosun HM3X 3x Red Dot Sight Magnifier:

  • Flip to the Side design
  • Outstanding Specification & Clarity
  • QD Mount and Spacer Included
  • IP67 Certified
  • Compatible with Absolute and Lower 1/3 Height Optics

Package Contents:

  • Holosun HM3X 3x Red Dot Sight Magnifier
  • QD Release Mount
  • T10 L Key
  • User Manual

Holosun HM3X 3x Red Dot Sight Magnifier Orderable Models

List of Orderable Models

Holosun HM3X Red Dot Magnifier, 3X, Integrated QD Mount w/Optional Spacer, Black, HM3X , MPN: HM3X , UPC: 605930625271 , Code: 28Y-RDM-HM3XTRDM-HM3X
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