Holosun ARO Advanced Rifle Optic with Multi Reticle System (MRS) - Red Dot

SKU#ARO-MRS-RD Holosun

Holosun ARO Advanced Rifle Optic with Multi Reticle System (MRS) - Red Dot

Name: Holosun ARO Advanced Rifle Optic with Multi Reticle System (MRS) - Red Dot
Brand: Holosun
Price: 181.99 GBP
Availability: OutOfStock

Available soon Notify me when back in stock

The Holosun ARO Red Dot is a clean, modern rifle optic that keeps things fast and simple while still giving you a bit of flexibility. It uses a 2 MOA red dot with Holosun’s Multi-Reticle System, so you can run just the dot for precision, a 65 MOA circle for speed, or both together depending on the situation. The 22mm window gives you a wider, more comfortable sight picture, and the Shake Awake plus long battery life means it’s basically always ready when you pick up the rifle. It also comes with a lower 1/3 co-witness mount, so it’s already set up for AR-style rifles right out of the box. It’s a straightforward, durable optic that focuses on speed, clarity, and reliability without overcomplicating things.

-Nathan (Technical Advisor)

VIEW PRODUCT INFO / SPECS

Reticle: Multi-Reticle (Red)

Multi-Reticle (Green)

Multi-Reticle (Red)

Green Dot

Red Dot

Whilst we aim to dispatch in-stock items within 1 working day, please be aware that during busy periods dispatch of in-stock items may be delayed by up to 2 working days. Authorised UK Retailer

WHY BUY FROM US?

PRICE MATCH

SWAP-OUT GUARANTEE

FAST DELIVERY

30 DAY RETURNS

UNMATCHED SERVICE

OBSIDIAN REWARDS

Founded in Devon in 2007, Optics Warehouse has grown to become the UK’s largest specialist optics retailer, offering an unrivalled selection of rifle scopes, thermal imagers, night vision, binoculars, red dots, mounting systems and shooting accessories from the world’s leading brands, all backed by competitive pricing, expert advice and outstanding customer service.

Shaun Ellis, Managing Director Long range target shooting and deer stalking.

Product Information FIND OUT MORE

DESCRIPTION

The Holosun ARO Advanced Rifle Optic with Multi Reticle System (MRS) represents the next generation in precision shooting technology. Building on the legacy of the popular 20mm 403 and 503 series, the ARO introduces a redesigned 22mm housing that integrates seamlessly with Holosun’s magnifier range and features an all-new 1.63" lower 1/3 co-witness pedestal mount, delivering superior alignment and target acquisition.

At the heart of the ARO lies Holosun’s Multi-Reticle System (MRS), allowing users to effortlessly toggle between a 2 MOA dot, a 65 MOA circle, or a combination of both. This flexibility ensures fast target engagement at close quarters, while also providing a clean, precise aiming point for longer-range shots. Whether you're on the range or in the field, the MRS adapts to your needs for ultimate versatility.

The optic is equipped with Shake Awake™ Technology, a motion-sensitive feature that conserves battery life by deactivating the LED when idle and reactivating it instantly upon movement. This ensures your optic is always ready when you are, with user-configurable sleep timers ranging from 10 minutes to 12 hours. Paired with a CR2032 battery, the ARO offers an astonishing battery life of up to 50,000 hours, delivering unmatched reliability.

Holosun’s Super LED technology supports 10 daylight and 2 night vision brightness settings, providing crystal-clear visuals in any lighting condition. The lens is treated with multi-layer reflective coatings to enhance clarity and reduce glare, all housed in a durable aluminium body finished in MAO for maximum resilience. The optic is also parallax-free, offers unlimited eye relief, and is IP67-rated waterproof, making it a dependable companion in the harshest environments.

Compact yet rugged, the ARO weighs just 3.38oz and measures 2.48 x 1.54 x 2.63 inches, with ±50 MOA windage and elevation adjustment range and 0.5 MOA per click precision. Built to withstand temperatures from -30°C to 60°C in use and storage from -40°C to 70°C, it’s also shockproof to 1000G, ready for whatever comes its way.

SPECS

Optical Specs

Reticle: 2 MOA Dot & 65 MOA Circle
Light Wavelength: 650nm
Reticle Colour: Red
Parallax Free: Yes
Unlimited Eye Relief: Yes
Magnification: 1x
Multi-Coatings: Yes

Electronic Specs

Power Source: Battery
Battery Type: CR2032
Battery Life: 50,000 Hours
Brightness Settings: 10 Daylight & 2 Night Vision Compatible
Thermal Modes: N/A
Digital Modes: N/A
Video Recording: N/A
Screen Refresh Rate: N/A
Digital Screen: N/A

Physical Specs

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

Mechanical Specs

Housing Material: Durable Aluminum
Surface Finish: MAO
Adjustment per Click: 0.5 MOA
Windage & Elevation Travel Range: ±50 MOA

Environment Specs

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

FEATURES

Multi-Reticle System (MRS): Easily switch between a 2 MOA dot, a 65 MOA circle, or a combination of both, allowing rapid target acquisition or enhanced precision based on your shooting needs.
Shake Awake™ Technology: Automatically powers down the LED when idle and reactivates it instantly upon detecting motion, significantly extending battery life and ensuring the optic is always ready when needed.
Super LED Illumination: Offers a wide range of brightness settings, including options compatible with night vision, delivering a bright, crisp reticle in any lighting condition.
Lower 1/3 Co-Witness Mount: Includes a purpose-built 1.63" pedestal mount for perfect alignment with standard height iron sights and magnifiers.
Parallax-Free with Unlimited Eye Relief: Allows for comfortable and fast target engagement from any shooting position without image distortion or eye strain.
Multilayer Reflective Glass Coatings: Enhances clarity, reduces glare, and improves light transmission for a sharper sight picture.
Durable Construction: Housed in tough aluminium with a MAO surface finish, the optic is built to withstand rough handling, recoil, and extreme environmental conditions.
IP67 Waterproof Rating: Fully sealed against dust and capable of withstanding submersion in water, making it reliable in rain, snow, and wet environments.
Shockproof Design: Rated up to 1000G, providing resilience against heavy recoil and impact.
Compact and Lightweight: Designed to maintain manoeuvrability and balance on your rifle without adding unnecessary weight or bulk.

WHAT'S IN THE BOX

Holosun ARO Advanced Rifle Optic with Multi Reticle System (MRS)
1x 1.63" optic mount
1x 1.05" optic mount
1x Multi tool
1x Wrench
1x Cleaning cloth

FREQUENTLY ASKED QUESTION(S)

1. What reticle does the ARO Red use?
It uses a 2 MOA red dot with Holosun’s Multi-Reticle System (dot, circle, or circle-dot combo).

2. What does MRS mean?
MRS stands for Multi-Reticle System, letting you switch between aiming styles depending on speed or precision needs.

3. Is it good for AR-15 rifles?
Yes, it’s designed for AR-style rifles and carbines and includes a lower 1/3 co-witness mount.

4. How big is the sight window?
It uses a 22mm optical window for a wider, clearer field of view.

5. Does it have shake-awake?
Yes, it automatically powers on with motion and shuts off when idle to save battery.

6. How long does the battery last?
Up to about 50,000 hours depending on brightness settings and usage.

7. Does it support night vision?
Yes, it includes multiple brightness settings, including NV-compatible levels.

8. Is it enclosed or open?
It’s an open-emitter red dot, not a fully enclosed design.

9. Is it durable?
Yes, it uses a rugged aluminum housing with waterproof and shock-resistant construction.

10. What’s the main advantage of the ARO Red?
It combines a wide field of view, multiple reticle options, long battery life, and automatic power features in a simple, rugged rifle optic that’s easy to run in real-world use.

WARRANTY

Holosun 10 years / product lifetime warranty. Read more here

DELIVERY & RETURNS

Our aim is to ensure that your order arrives with you as soon as possible and in the safest, most cost-effective means.

Please Note: Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.

Please Note: DPD SHIPMENTS REQUIRE THE CUSTOMER TO SHOW A PIN CODE ON DELIVERY - READ MORE: HERE

COURIERS

We use DPD , RoyalMail, TNT and UPS courier services for all our orders whether dispatching to the UK or International. As soon as your order has been dispatched you will receive an email with your unique tracking number. We are unable to add delivery notes to your order regarding safe spaces or neighbour deliveries. If you require this service it can be arranged directly with the courier once the parcel is in their network.

IN-STORE ITEMS

These are items that we have in-stock and will be sent out for delivery as soon as possible. We aim to dispatch all orders within 1-2 working days, but during busy periods dispatch may be delayed by a day or so. If you would like to purchase the item in person then please call ahead to arrange an appointment: 01803 611 895.

PRE-ORDER ITEMS

These are usually items that are going to be out-of-stock for a number of weeks or are in short supply. By purchasing a Pre-Order Item you are in effect paying a deposit for your goods. As soon as the item is back in stock yours will be dispatched within 24 hours where possible. Please see individual product pages for current back-in-stock dates. In rare occasions, these dates can be changed by the manufacturers so we recommend staying in contact with Optics Warehouse depending on the product lead time.

INTERNATIONAL DELIVERY & TAXES

In addition to the above information If your delivery address is outside of the UK you may be subject to import duties and taxes, which are levied once a shipment reaches your country. Any such additional charges for customs clearance must be borne by you. You should note that customs policies vary widely from country to country. Optics Warehouse advises each customer to contact their local customs office for further information if they are in any way unsure of local duties or liabilities. Cross border shipments are subject to opening and inspection by customs authorities which means some packages may be opened and re-sealed.

NEED HELP?

If you require any further assistance, please call us on 01803 611 895 or email sales@opticswarehouse.co.uk

-

A NOTE ABOUT DPD SHIPMENTS:

Please be advised that we have now introduced DPD Pins to all DPD orders from Optics Warehouse.
If your shipment is being sent from Optics Warehouse via DPD you will be sent a Pin Code that must be shown to the courier upon delivery.
The pincode is sent VIA email & TEXT message. A valid email address and mobile number must be provided at checkout. Emails will be sent from "Riviera House 3PL" - if you do not receive this email please check your junk or spam folders.
Please note that if you do not display your pin code to the courier driver upon delivery, you will not be able to have your item and you may need to schedule another delivery date to show a valid pin.
Please view the attached slides HERE for further information!

ASK A QUESTION

REVIEWS

After more? KEEP EXPLORING

DRAWS REVIEWS

OPTICS DRAWS WIN YOUR DREAM RIFLE SCOPE, NIGHT VISION UNIT, THERMAL IMAGER AND MORE! Prize Draws