Holosun Red Dot Magnifier Combo ARO-EVO-SPR-RD-HM3X – Overview –
The Holosun Red Dot Magnifier Combo ARO-EVO-SPR-RD-HM3X is the latest evolution in the ARO (Advanced Rifle Optic) Models, engineered for precision-focused shooters who demand versatility, reliability, and cutting-edge performance. Featuring a larger 26mm optical window, this optic delivers an expansive field of view for enhanced situational awareness and rapid target acquisition in any shooting environment.
Purpose-built with Holosun’s SPR (Special Purpose Reticle), the Holosun Red Dot Magnifier Combo ARO-EVO-SPR-RD-HM3X provides a 1.5 MOA central red dot, three 1 MOA holdovers, 65 MOA circle and ranging reticle—all designed for intuitive bullet drop compensation (BDC) optimized for M193 5.56 ammunition at 3050 FPS. The SPR reticle offers configurable settings for both close-quarters speed, range estimation, and long-range accuracy.
Integrated features like Shake Awake™, Solar Failsafe, and automatic brightness adjustment ensure that your optic is always mission-ready while maximizing battery efficiency. The side-loading CR2032 battery tray allows for easy changes without unmounting the optic, and the battery provides up to 50,000 hours of runtime on setting 6.
In the Box
- 1x ARO-EVO-SPR-RD Optic
- 1x 1.63 in Optic Mount
- 1x 1.15 in Optic Mount
- 1x Multi-tool
- 1x Wrench
- 1x Cleaning Cloth
– TECH & FEATURES –
Solar Failsafe™
Shake Awake™
Multiple Reticle System
Multilayer Reflective Glass
Multiple Reticle System
Multi-reticle System (MRS) equipped Holosun optics allow you to determine the type of aiming point you want to use when you want to use it. Holosun optics equipped with MRS let you select a fast sight picture for shorter distances with a 65 MOA circle with 2 MOA dot (rifle optics) or a 32 MOA circle with 2 MOA dot (handgun optics). The large circle can help you obtain a sight picture faster, allows for a hold-over reference, and helps to guide your eye to the 2 MOA dot. The large ring can be deactivated leaving just the 2 MOA dot for an uncluttered sight picture and increased precision. Regardless of your application, Holosun’s Multi-reticle System offers the ultimate in optical sight customization for sportsman and professional users alike.
– Specification –

- Shake Awake™ Technology w/ Last Setting Recall
- Special Purpose Reticle (SPR): 1.5 MOA Dot / 65 MOA Circle / 3 Dot BDC (1 MOA) / Ranging Reticle
- Up to 50,000 Hour Battery Life
- Solar Failsafe™
OPTICAL SPECS
| Reticle | Special Purpose Reticle (SPR): 1.5 MOA Dot / 65 MOA Circle / 3 Dot BDC (1 MOA) / Ranging Reticle |
| 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) | 50000 |
| Thermal Modes | N/A |
| Digital Modes | N/A |
| Video Recording | N/A |
| Screen Refresh Rate | N/A |
| Digital Screen | N/A |
| Brightness Setting | 8 DL & 4 NV |
PHYSICAL SPECS
| Window Size | 1.02 in |
| Dimension (in) | 2.87×1.68×2.7 |
| Weight (oz) | 4.33 |
MECHANICAL SPECS
| Housing Material | 6061 T6 Aluminum |
| Surface Finish | Anodize |
| Adjustment per Click | 0.5 MOA |
| W&E Travel Range | ±50 MOA |
ENVIRONMENT SPECS
| Storage Temperature | -40℃~70℃ |
| Working Temperature | -30℃~60℃ |
| Submersion | IPX8 |
| Vibration | 1000G |
– Overview –
The HM3X is an aluminum 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.
Does not use batteries.
Items Dimensions (in inches)

In the Box
- QD Release Mount
- T10 L Key
- User Manual
– Specification –

- Flip-to-the-side Design
- Outstanding Specification & Clarity
- QD Mount & Spacer included
- IP67 Waterproof
ELECTRONIC SPECS
| Power Source | N/A |
| Battery Type | N/A |
| Battery Life (Hours) | N/A |
| Thermal Modes | N/A |
| Digital Modes | N/A |
| Video Recording | N/A |
| Screen Refresh Rate | N/A |
| Digital Screen | N/A |
| Brightness Setting | N/A |
PHYSICAL SPECS
| Window Size | N/A |
| Dimension (in) | 3.9 x 1.7 x 2.5 |
| Weight (oz) | 9.8 |
MECHANICAL SPECS
| Housing Material | Durable Aluminum |
| Surface Finish | MAO |
| Adjustment per Click | N/A |
| W&E Travel Range | N/A |
ENVIRONMENT SPECS
| Storage Temperature | -21℃~60℃ |
| Working Temperature | -21℃~60℃ |
| Submersion | IP67 |
| Vibration | 1000G |
MAGNIFICATION SPECS
| Digital Zoom | N/A |
| Transmittance | 75% |
| Diopter | NA |
| Field of View | 7 Degree |
| Eye Relief | 70mm |
| Exit Pupil | 7.6mm |
| Magnification | 3X |


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