HOLOSUN
HOLOSUN ARO-CORE-RD2 Red Dot + HM3X 3x Magnifier
HOLOSUN ARO-CORE-RD2 Red Dot + HM3X 3x Magnifier
Tienda Almansa
Pol. Ind. III Fase - C/ Ronda Sur, 7
02640 Almansa
Albacete
Spain
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The HOLOSUN ARO-CORE-RD2 + HM3X is an optical set that combines a 2 MOA closed red dot sight with the 3x HOLOSUN HM3X magnifier. This configuration allows for quick switching between 1x viewing and a 3x magnified image, offering a versatile solution for different distances.
The ARO-CORE-RD2 features a 22 mm optical window, Shake Awake technology, manual intensity control, and a battery life of up to 50,000 hours. The HM3X magnifier is installed behind the red dot and utilizes a Flip-to-Side mount, allowing it to be moved out of the line of sight in seconds without removing it.
Both devices feature aluminum housings and are designed to work together, providing a compact system that combines the speed of a red dot with the additional observation capability of a 3x magnifier.
Main features:
Red dot + magnifier set: includes the HOLOSUN ARO-CORE-RD2 and the HM3X magnifier.
2 MOA red reticle: provides a fine, defined dot for rapid reference acquisition.

1x / 3x Magnification: allows the use of the red dot without magnification or the immediate incorporation of the HM3X's 3x magnification.
HM3X Magnifier: provides fixed 3x magnification to improve viewing at greater distances.
Flip-to-Side mount: allows the magnifier to be flipped to the side to quickly switch between 1x and 3x.
Quick Detach (QD) mount: facilitates the mounting and removal of the magnifier.
22 mm optical window: provides a wide field of view while maintaining compact dimensions.
Shake Awake: automatically activates lighting upon detecting motion and reduces power consumption during periods of inactivity.
Up to 50,000 hours of battery life: provides long-lasting performance using a CR2032 battery.
12 intensity levels: includes 10 daylight levels and 2 night vision compatible levels.
Side battery tray: allows the CR2032 battery to be replaced without removing the red dot sight.
Memory function: retains the last intensity setting used.
Multi-coated lenses: improve light transmission and provide a clear image.
Unlimited eye relief on the ARO-CORE: makes it easy to acquire the dot from different positions.
Aluminum construction: both the red dot and the magnifier use rugged housings prepared for intensive use.
Two mounting heights: includes a 1.63” Lower 1/3 mount and a 1.05” low mount.
Technical specifications:
Brand: HOLOSUN
Model: ARO-CORE-RD2 + HM3X
Product type: Red dot and magnifier set
Red dot: ARO-CORE-RD2
Magnifier: HM3X
Reticle color: Red
Reticle: 2 MOA Dot
Red dot magnification: 1x
Magnifier magnification: 3x
Red dot window diameter: 22 mm
Red dot eye relief: Unlimited
Red dot parallax: Parallax-free
Lens coating: Multi-coated
Shake Awake technology: Yes
Memory: Yes
Solar: No
Intensity levels: 12
Daylight levels: 10
Night vision compatible levels: 2
Battery: CR2032
Battery life: Up to 50,000 hours at setting 6
Battery location: Side tray
ARO-CORE material: Aluminum
Finish: MAO
Adjustment per click: 0.5 MOA
Elevation and windage range: ±50 MOA
ARO-CORE protection: IP67
Vibration resistance: 1,000 G
ARO-CORE dimensions: approx. 63 × 39 × 67 mm
ARO-CORE weight: approx. 95.8 g
HM3X magnification: 3x
HM3X exit pupil: 7.6 mm
HM3X eye relief: 70 mm
HM3X field of view: 7°
HM3X diopter adjustment: ±3 D
HM3X transmission: 75%
HM3X lens material: Optical glass
HM3X material: Aluminum
HM3X protection: IPX7
HM3X purging: Nitrogen
HM3X dimensions: Approximately 102 × 43 × 64 mm
HM3X weight: Approximately 309 g
Mounting: Picatinny
Recommended use:
The HOLOSUN ARO-CORE-RD2 + HM3X is intended for users seeking to combine the speed and wide field of view of a 1x red dot with the ability to have 3x magnification available immediately. The flip-to-side mount of the HM3X allows for quick transitions between configurations, while the ARO-CORE provides Shake Awake, long battery life, and a 2 MOA red reticle.
Box contents:
HOLOSUN ARO-CORE-RD2 red dot sight.
HOLOSUN HM3X 3x magnifier.
Flip-to-Side mount for HM3X.
1.63” Lower 1/3 mount.
1.05” low mount.
CR2032 battery.
Multi-tool.
Lens cloth.
User manual.
Warranty card.