The Holosun IRIS-RD4 is a compact, advanced quad-function aiming and illumination system engineered to meet the demands of modern professionals and enthusiasts alike. Precision-machined from 7075-T6 aluminum, the redesigned housing is 43% lighter, 29% lower, and 28% narrower than the legacy LS420, offering superior ergonomics without compromising structural integrity—ideal for integration on PDWs, SBRs, and standard rifle platforms.
At its core, the IRIS-RD4 combines a co-aligned visible red laser, infrared (IR) aiming laser, 60mW VCSEL-based IR illuminator, and a high-output white light delivering 1,000 lumens and 25,000 candela. This integration allows operators to transition seamlessly between daylight aiming, night vision engagements, and high-intensity white light use. The co-alignment of the lasers simplifies zeroing—users can calibrate both IR and VIS lasers simultaneously using the visible laser in daylight conditions, ensuring consistent point-of-aim across environments.
A key feature of the IRIS-RD4 is its top-mounted IR beam divergence slider, which enables on-the-fly adjustment of the IR illuminator’s beam pattern from wide flood to tight spot—optimized for performance across a range of shooting needs. Dual independent fire buttons offer tactile, ambidextrous control of laser and light functions, while the updated rear-positioned power and mode selector provides streamlined controls.
The included three-button remote connects via a Crane plug and features a visible laser override for instant activation. For power flexibility, the IRIS-RD4 can be powered by two CR123A batteries (included), or one rechargeable 18650 battery (not included) —delivering reliable performance in any environment.
| ELECTRONIC SPECS | |
| Power Source | Battery |
| Battery Type | CR123A |
| Battery Life (Hours) | Up to modes |
| Thermal Modes | N/A |
| Digital Modes | N/A |
| Video Recording | N/A |
| Screen Refresh Rate | N/A |
| Digital Screen | N/A |
| Brightness Setting | Up to modes |
| PHYSICAL SPECS | |
| Window Size (in) | N/A |
| Dimension (in) | 4.2×2.3×1.4 |
| Weight (oz) | 8.5 |
| MECHANICAL SPECS | |
| Housing Material | 7075 T6 Aluminum |
| Surface Finish | Hard 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 |
| ILLUMINATOR SPECS | |
| White LED Candela | 25000 |
| Laser & Illuminator Type | Dual Laser & Dual Illuminator |
| White LED Output | 1000 Lumens |
| IR Illuminator Class | Class 1 |
| IR Illuminator Output | VCSEL 60mW |
| IR Pointer Class | Class 1 |
| IR Pointer Output | <0.7mw |
| Visible Laser Class | 3R |
| Visible Laser Output | <5mW |
By purchasing Holosun IRIS 4 Quad Function Rifle System w/White Light from our online store, you are guaranteed to receive a high-quality item. We work with trusted brands to offer shooting and hunting enthusiasts, both amateur and professional, quality products at a reasonable price. Choosing to buy from us means opting for quality and practicality
The actual appearance of the product may differ from the image on the website. For additional information about payment, delivery, and product specifications, please contact us by phone or email.
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