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SKU#ARO-RD2&HM3X Holosun
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Holosun ARO 2MOA Red Dot Reticle with HM3X 3x Micro Magnifier with QD Flip

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The Holosun ARO 2 MOA Red Dot + HM3X 3x Magnifier combo is basically a simple 1x red dot that can instantly turn into a mid-range setup when you flip the magnifier in. The ARO gives you a clean, fast 2 MOA red dot in a wide 22mm window for close work, and the HM3X adds 3x magnification on a quick flip-to-side mount for stretching things out when you need more precision. Both pieces are built from solid aluminum, come with quick-detach mounting, and are designed to line up properly with included spacers so the sight picture stays clear and centered. It’s a flexible, grab-and-go rifle setup that covers both close-quarters speed and longer-range clarity without needing a full scope swap.

-Nathan (Technical Advisor)

images/assets/pdp-refresh/delivery-clock.svg We aim to dispatch in-stock items to our Ireland-based Logistics Warehouse for EU dispatch within 1-3 working days. images/assets/pdp-refresh/UK-retailer.svg Authorised UK Retailer
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Product Information FIND OUT MORE
DESCRIPTION

Holosun ARO 2MOA Red Dot

ARO (Advanced Rifle Optic) is an advancement on the popular 20mm 403 and 503 series optics. ARO features an all-new 22mm housing design that mates perfectly with the magnifier series and an all-new 1.63” lower 1/3 co-witness pedestal mount. 

HM3X 3x Micro Magnifier

The HM3X is an aluminium 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.

 

SPECS

Holosun ARO 2MOA Red Dot

OPTICAL SPECS

  • Reticle: 2 MOA Dot
  • Light Wavelength: 650nm
  • Reticle Color: Red
  • Parallax Free: Yes
  • Unlimited Eye Relief: Yes
  • Magnification: 1x
  • Multi-Coatings: Yes

ELECTRONIC SPECS

  • Power Source: Battery
  • Battery Type: CR2032
  • Battery Life (Hours): 50,000
  • Brightness Setting: 10 DL & 2 NV
  • Thermal Modes / Digital Modes / Video Recording / Digital Screen / Refresh Rate: N/A

PHYSICAL SPECS

  • Window Size: 0.86 in
  • Dimensions (in): 2.48 × 1.54 × 2.63
  • Weight (oz): 3.38

MECHANICAL SPECS

  • Housing Material: Durable Aluminum
  • Surface Finish: MAO
  • Adjustment per Click: 0.5 MOA
  • W&E Travel Range: ±50 MOA

ENVIRONMENT SPECS

  • Storage Temperature: -40℃ to 70℃
  • Working Temperature: -30℃ to 60℃
  • Submersion Rating: IP67
  • Vibration Resistance: 1000G

 

 

Holosun HM3X 3x Micro Magnifier

PHYSICAL SPECS

  • Dimensions (in): 3.9 × 1.7 × 2.5
  • Weight (oz): 9.8

MECHANICAL SPECS

  • Housing Material: Durable Aluminum
  • Surface Finish: MAO

ENVIRONMENT SPECS

  • Storage Temperature: -21℃ to 60℃
  • Working Temperature: -21℃ to 60℃
  • Submersion Rating: IP67
  • Vibration Resistance: 1000G

MAGNIFICATION SPECS

  • Magnification: 3X
  • Field of View: 7°
  • Eye Relief: 70mm
  • Exit Pupil: 7.6mm
  • Transmittance: 75%
  • Diopter / Digital Zoom: N/A
FEATURES

Holosun ARO 2MOA Red Dot

Shake Awake™ Technology w/ Last Setting Recall

Shake Awake Technology is a standard feature on all current model Holosun optics and serves to extend battery life by deactivating the optic’s LED while not in use. A highly sensitive motion sensor works to detect motion keeping the LED powered on during use. This allows for duty or concealed carry with seamless operation throughout your day or shift. At the end of your day or shift when your firearm is stored, the motion sensor will detect a motionlessness state and after 10 minutes (default setting) Shake Awake Technology powers the LED off until motion is again detected. Shake Awake offers settings from 10 minutes to 12 hours depending on the model and can be deactivated altogether if preferred. The slightest touch of the optic instantly reactivates the LED so your Holosun optic is ready when needed.

Multilayer Reflective Glass

Holosun’s use of Grade 5 Titanium in certain Elite category optics and laser devices results in unparalleled strength and durability. Holosun Grade 5 Titanium has more than double the tensile strength and has five-times the fatigue strength of 7075 Aluminum. Grade 5 Titanium is also able to withstand the corrosiveness of seawater making Holosun Titanium model optics and lasers suitable for use in maritime environments.
 

HM3X 3x Micro Magnifier

  • Flip-to-the-side Design
  • Outstanding Specification & Clarity
  • QD Mount & Spacer included
  • IP67 Waterproof
WHAT'S IN THE BOX

Holosun ARO 2MOA Red Dot

  • 1x ARO-RD2 Optic
  • 1x 1.63 in Optic Mount
  • 1x 1.05 in Optic Mount
  • 1x Multi-tool
  • 1x Wrench
  • 1x Cleaning Cloth

HM3X 3x Micro Magnifier

  • QD Release Mount
  • T10 L Key
  • User Manual
FREQUENTLY ASKED QUESTION(S)

1. What does this combo include?
It includes the Holosun ARO red dot optic and the HM3X 3x flip-to-side magnifier, both mounted for Picatinny rails.

2. What is the main benefit of using a magnifier?
The red dot handles fast close-range shooting, while the HM3X gives you 3x zoom for clearer mid-range target identification and precision.

3. Does the magnifier flip out of the way?
Yes, it uses a quick flip-to-side mount so you can instantly switch between 1x and 3x without removing anything.

4. Do the optics line up properly?
Yes, the kit includes spacers/riser components to match optic and magnifier heights so the reticle stays centered in the magnifier.

5. What reticle does the ARO use?
A simple 2 MOA red dot designed for fast target acquisition.

6. Is it good for AR-style rifles?
Yes, it’s designed for AR platforms and similar rifles using Picatinny rails.

7. Does it work in low light or night setups?
Yes, the optic includes multiple brightness settings including night-vision compatible levels depending on configuration.

8. How durable is the system?
Both the optic and magnifier are built with aluminum housings and rated for recoil, shock, and weather resistance.

9. Is the magnifier removable?
Yes, it uses a quick-detach mount so you can remove or reposition it easily if needed.

10. What’s the main advantage of this setup?
It gives you a lightweight 1x red dot for speed plus a quick 3x upgrade for distance, without needing to switch optics or re-zero.

WARRANTY
DELIVERY & RETURNS
Shipping to Europe

Delivery costs & estimated arrival

Find your country below for the delivery charge and how long your order should take to reach you. All orders ship with FedEx. Estimates are in working days and exclude weekends and public holidays.

Country Up to 2kg 2kg – 30kg Estimated delivery
Order under €350 Order €350 & over Order under €350 Order €350 & over
Austria€11.95€26.95€26.95€26.955-7 working days
Belgium€8.95€14.95€14.95€14.954-6 working days
Bulgaria€11.95€31.95€31.95€31.957-9 working days
Croatia€11.95€31.95€31.95€31.956-8 working days
Cyprus€14.95€89.95€89.95€89.95Contact us
Czechia€10.95€21.95€21.95€21.955-7 working days
Denmark€10.95€21.95€21.95€21.954-6 working days
Estonia€11.95€31.95€31.95€31.956-8 working days
Finland€11.95€26.95€26.95€26.955-7 working days
France€10.95€21.95€21.95€21.954-6 working days
Germany€8.95€14.95€14.95€14.955-7 working days
Greece€11.95€31.95€31.95€31.958-10 working days
Hungary€11.95€31.95€31.95€31.955-7 working days
Ireland€6.95€6.95€8.95€8.952-4 working days
Italy€10.95€21.95€21.95€21.955-7 working days
Latvia€11.95€31.95€31.95€31.956-8 working days
Lithuania€11.95€31.95€31.95€31.956-8 working days
Luxembourg€11.95€31.95€31.95€31.955-7 working days
Malta€14.95€89.95€89.95€89.95Contact us
Monaco€10.95€21.95€21.95€21.954-6 working days
Poland€10.95€21.95€21.95€21.955-7 working days
Romania€11.95€31.95€31.95€31.956-8 working days
Slovakia€11.95€31.95€31.95€31.955-7 working days
Slovenia€11.95€31.95€31.95€31.956-8 working days
Spain€11.95€26.95€26.95€26.955-7 working days
Sweden€11.95€26.95€26.95€26.955-7 working days

Returns & withdrawal

Which option you use depends on why you are sending the item back.

Changed your mind?

You have 14 days from receiving your order to withdraw from your purchase. Use our Withdrawal from Contract form to tell us. It is the quickest way, and we will then email you a free returns label.

If you would rather post the item back yourself to our returns address in Ireland, you pay the postage. Full details are on our Returns page.

Withdrawal from Contract

Faulty, damaged or wrong item?

If your item arrived faulty, damaged or not what you ordered, please follow the steps on our Returns page. We cover the cost of returning these items.

Full details of all our return options are on that page.

Returns page

Delivery prices are shown in euros and confirmed at checkout.

EU PRODUCT SAFETY AND COMPLIANCE

Product safety information is available on request from our customer service team.

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