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HOLOSUN

Holosun ARO-CORE Series, 2 MOA or 2 MOA/Multi-Reticle Options with Shake Awake, 22mm Optical Window, 12 Brightness Settings, Co-Witness & Low Mounts, (Red, Green, Gold Reticle Options)

  • Based on 364 reviews
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Availability: Only 2 left in stock, order soon!
Fulfilled by Amazon
Arrives Thursday, Sep 10
Order within 20 hours and 18 minutes
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Color: Red


Style: 2 MOA


Features

  • High-performance 2MOA red dot reticle for enhanced accuracy.

Description

The Holosun ARO-CORE represents the latest evolution of Holosun’s renowned 403 and 503 series, offering a perfect balance of performance, reliability, and affordability. Designed with shooters in mind, the ARO-CORE features a refined 22mm optical window for enhanced visibility and a crisp 2 MOA dot, providing an optimal sight picture in a compact and lightweight design. Equipped with Shake Awake technology, this optic automatically activates when it detects motion and conserves battery life when idle with auto-off. The side-loading CR2032 battery tray ensures easy battery replacement, while the manual brightness controls offer flexibility with 10 daylight and 2-night compatible settings. The ARO-CORE is built to last with rugged aluminum housing finished in a low-profile matte black. Its IP67 water and dust resistance rating guarantees reliability in harsh environments, while the included 1.63" lower 1/3 co-witness mount and 1.05" low mount offer versatility across different rifle setups. Whether you're a professional or enthusiast, the Holosun ARO- CORE is engineered to provide superior performance in a user-friendly package.

Brand: HOLOSUN


Color: Red


Style: 2 MOA


Product Dimensions: 0.87"L x 0.87"W x 0.87"H


Sport: Hunting & Shooting


Item Weight: 0.28 Ounces


Material: See Description


Magnification Maximum: 1.0


Objective Lens Diameter: 22 Millimeters


Magnification Minimum: 1 x


Magnification Maximum: 1.0


Objective Lens Diameter: 22 Millimeters


Magnification Minimum: 1 x


Compatible Devices: Rifle


Mounting Type: Picatinny Mount


Night vision: No


Eye Relief: 22 Millimeters


Field Of View: 0.87 Inches


Reticle Type: RED DOT, 2 MOA


Item Dimensions L x W x H: 0.87"L x 0.87"W x 0.87"H


Item Weight: 0.28 Ounces


Item Display Weight: 3.38 ounces


Color: Red


Product Style: 2 MOA


Lens Color: Red


Brand Name: HOLOSUN


Sport Type: Hunting & Shooting


Model Name: ARO-CORE-RD-2


Manufacturer: Holosun


UPC: 810047073598


Global Trade Identification Number: 98


Model Number: ARO-CORE-RD-2


Manufacturer Part Number: ARO-CORE-RD-2


Unit Count: 1.0 Count


Warranty Description: Limited Lifetime Manufacturer Defective Warranty


Included Components: See Description


Material Type: See Description


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Sep 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Clear Dot with Astigmatism
Color: Red Style: 2 MOA
Clarity Even with my astigmatism, the dot on this appears very clean and crisp, better than any other I've seen other than one from Primary Arms. I've heard the two brands are made in the same factory, so it makes sense. Even if you have astigmatism, you shouldn't hesitate to buy this. You may be surprised how little it blooms. The glass is also very clear and the window is a good size. Price I'm willing to say this is the best deal on a red dot out there right now. Zeroing Positive clicks, solid tracking, zeroed quickly with no issues. Weight Feels like nothing on the rifle but also feels well-built and rugged. Height Standard mount is lower 1/3 cowitness, which is perfect. Also comes with a low mount. Overall For the practical and economical, you can't beat it. ... show more
Reviewed in the United States on April 24, 2026 by Jonathan O'Brien
    • Rock‑Solid Performance and Zero Hassle Installation
Color: Red Style: Multi-Reticle
This Holosun ARO‑CORE Series sight absolutely exceeded expectations. The package showed up earlier than expected and was in perfect condition; no dents, no scratches, nothing out of place. Installation was a breeze; it mounted securely and aligned quickly without any frustration. Once on, the clarity and responsiveness were immediately noticeable. It feels durable, performs flawlessly, and genuinely elevates the setup. Worth every penny and then some. ... show more
Reviewed in the United States on June 8, 2026 by Andrew Jones
    • New Standard for Affordable Red Dot Sights
Color: Red Style: 2 MOA
The Holosun Advanced Rifle Optic really stands out as the new standard for basic red dot sights that don’t break the bank. It delivers excellent performance without the premium price tag. The 22mm optical window gives a clear, unobstructed view, and the Shake Awake feature keeps the sight ready whenever you need it. With 12 brightness settings, it’s easy to get the perfect dot visibility in all lighting conditions. I also appreciate that it comes with both co-witness and low mounts, making it versatile and easy to install on different platforms. Overall, this sight feels solid, reliable, and well-built — a great value for anyone who wants quality performance without spending a fortune. Highly recommended! ... show more
Reviewed in the United States on January 9, 2026 by George B.
    • Great red dot
Color: Red Style: 2 MOA
Great sight love the shake awake feature. Have only used for probably 400 rounds but held zero perfectly. Easy to mount great adjustment settings. Added Holosun magnifier as well and they work great.
Reviewed in the United States on May 7, 2026 by Steven
    • perfect for my aging eyesight
Color: Green Style: Multi-Reticle
great opic at price point. clear view, have one on daniel defense 9mm pcc and one without riser mount on ruger 10/22 carbine. as usual, fast shipping!
Reviewed in the United States on June 2, 2026 by craig
    • How good it works on my rifle
Color: Red Style: 2 MOA
The Oder was good have not time to test it.
Reviewed in the United States on May 23, 2026 by Frank
    • An awesome optic for the money
Color: Green Style: Multi-Reticle
I purchased the green reticle version since it’s easier for me to see in daylight. The 65 MOA circle is helpful and the sight picture is clear as day. No issues with battery life and it’s still holding zero after multiple sessions at the range.
Reviewed in the United States on June 12, 2026 by Jay R.
    • Good first red/green dot sight
Color: Green Style: 2 MOA
Worth every penny. Easy to put on and works great in a budget build. Green dot is crisp and has brightness adjustment. Stable dot and works great with a magnifier. Easy to adjust windage and elevation with the tool and comes with different mount options.
Reviewed in the United States on December 29, 2025 by Chicken George

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