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Holosun Red Dot Sight and Holosun Mangifier with Hard Case - ARO-RD2-&-HM3X

Holosun Red Dot Sight and Holosun Mangifier with Hard Case - ARO-RD2-&-HM3X

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Holosun  Red Dot Sight and Holosun Mangifier with Hard Case - ARO-RD2-&-HM3X

ARO is an advancement on our popular 20mm 403 and 503 series optics. ARO features an all-new 22mm housing design that mates perfectly with our magnifier series and an all-new 1.63" lower 1/3 co-witness pedestal mount.

Features
  • Shake Awake Technology w/ Last Setting Recall
  • Up to 50,000 Hour Battery Life
 Specifications
  • Reticle: 2 MOA Dot
  • Light Wavelength: 650nm
  • Reticle Color: Red
  • Parallax Free: Yes
  • Unlimited Eye Relief: Yes
  • Magnification: 1x
  • Multi-Coatings: Yes
  • Power Source: Battery
  • Battery Type: CR2032
  • Battery Life (Hours): 50000
  • Brightness Setting: 10 DL & 2 NV
  • Window Size: 0.86 in
  • Dimension (in): 2.48×1.54×2.63
  • Weight (oz): 3.38
  • Housing Material: Durable Aluminum
  • Surface Finish: MAO
  • Adjustment per Click: 0.5 MOA
  • W&E Travel Range: ±50 MOA
  • Storage Temperature: -40℃~70℃
  • Working Temperature: -30℃~60℃
  • Submersion: IP67
  • Vibration: 1000G
What Our Experts Think
  • Complete Red Dot + Magnifier Combo – The Holosun ARO-RD2 & HM3X package delivers a ready-to-use optics system, combining a fast-acquisition red dot sight with a 3X magnifier for extended target engagement.
  • Versatile Close-to-Mid Range Performance – The red dot provides rapid target acquisition at close range, while the HM3X magnifier allows clear identification and accuracy at distance without changing optics.
  • Quick Transition Flip Mount – The magnifier features a flip-to-side mechanism, enabling instant switching between 1X and 3X magnification for dynamic shooting scenarios.
  • Durable Hard Case Included – Comes with a protective hard case, ensuring safe transport and storage of both optics and accessories.
  • Rugged Build Quality – Designed with Holosun’s durable construction standards, offering resistance to recoil, impact, and field conditions for long-term reliability.
  • Clear Optical Performance – Both optic and magnifier are engineered for minimal distortion, maintaining a crisp sight picture across all distances.
  • Efficient Battery & Smart Features – Red dot includes energy-saving technology such as motion activation for extended battery life and readiness.
  • Ideal For: Tactical training, competitive shooting, range use, law enforcement, and professional rifle setups requiring flexibility and speed.
Q&A

Q: What is the Holosun ARO-RD2 & HM3X combo used for?
A: It is a red dot sight and magnifier bundle, designed to improve both close-range speed and mid-range target precision for rifles.

Q: What does the red dot sight offer?
A: The Holosun ARO-RD2 red dot provides fast target acquisition with a clear, parallax-free aiming point for close to medium range shooting.

Q: What does the HM3X magnifier do?
A: The Holosun HM3X magnifier adds 3x magnification and features a flip-to-side mount for quick switching between magnified and non-magnified view.

Q: Is it durable for tactical use?
A: Yes, both components are built with rugged aluminum housing, designed to withstand recoil, impact, and harsh environments.

Q: Is this a complete ready-to-use kit?
A: Yes, it comes as a bundle with hard case included, making it ideal for secure storage and transport.


Maintenance Tips
  • Clean both lenses regularly using a microfiber cloth and lens-safe cleaner for clear optical performance.
  • Avoid alcohol, ammonia, or abrasive materials that can damage lens coatings.
  • Always store both units in the hard case when not in use to prevent dust, scratches, and impact damage.
  • Check mounting screws and QD mounts regularly to ensure secure attachment and consistent zero.
  • Inspect flip-to-side mechanism on the magnifier for smooth operation and proper alignment.
  • Replace batteries on the red dot sight as needed and keep battery contacts clean and dry.
  • Keep both devices dry and avoid exposure to heavy rain, mud, or extreme humidity for long periods.
  • Avoid dropping or heavy impact to maintain internal alignment and durability.
  • Use lens caps when possible to protect optics from debris during transport or storage.
  • Perform routine function checks before use to ensure brightness, clarity, and alignment are correct.