Holosun IRIS RD4 4 in 1 Tactical Block – 1000 lumen, IR, red laser, IPX8

Holosun IRIS‑RD4 Tactical Laser Module – White Light, IR Illuminator, IR Laser, 18650

The Holosun IRIS‑RD4 is a compact, generation‑new tactical block that integrates four distinct light and laser functions into a single rail‑mounted unit: a bright 1000‑lumen white LED with 25 000 candela throw, an IR illuminator, an IR laser, and a visible red laser. Designed for diverse outdoor and professional‑oriented optics setups, the IRIS‑RD4 is ideal for sport‑shooting training, low‑light drills, and field applications where versatile illumination and aiming capabilities are required.

One of the main advantages of the IRIS‑RD4 is its high‑power white light engine, which delivers 1000 lumens and 25 000 candela output, providing strong illumination for open‑air tasks, hallway‑style scenarios, or backup lighting during dynamic drills. The built‑in IR illuminator (class 1, VCSEL 60 mW) and IR laser (class 1, 0.1 / 0.7 mW) allow discrete engagement in low‑visibility, night‑vision‑compatible environments, while the visible 660 nm red laser (1–5 mW, class 3R) gives a clear aiming reference in daylight or twilight. Brightness and output levels are continuously adjustable per mode, so you can tailor the intensity to your specific situation.

The IRIS‑RD4 is housed in a 7075‑T6 anodized aluminum chassis, which is 43% lighter, 29% thinner, and 28% narrower than previous‑generation Holosun laser blocks, yet maintains robust structural integrity. It is rated IPX8 and can withstand 1000 G of impact, making it suitable for heavy recoil and harsh outdoor conditions. The unit runs on a 18650 battery and offers a –20 °C to +51 °C operating temperature range, with storage supported from –40 °C to +70 °C, ensuring reliable performance across European climates. Buy the Holosun IRIS‑RD4 from Holosun Croatia and integrate a compact, multi‑function tactical laser‑light solution directly into your rail‑mounted optics platform.

Technical specifications – Holosun IRIS‑RD4

Frequently Asked Questions

What is the battery life and runtime of the Holosun IRIS‑RD4?
The Holosun IRIS‑RD4 runs on a 18650 rechargeable battery, giving it a flexible and long‑lasting power source compatible with common outdoor batteries. Runtime depends heavily on the selected mode (white flashlight, IR illuminator, IR laser or visible red laser) and brightness level, but in moderate‑power settings users can expect multiple hours of operation per charge. The 18650 also supports quick recharging or easy replacement, which is ideal for sport‑shooting training blocks and outdoor field sessions. Holosun Croatia supplies only genuine units, so the actual performance matches the manufacturer’s stated 18650‑based runtime expectations under normal European‑use conditions.

Is the Holosun IRIS‑RD4 a red dot sight or reflex optic?
No, the Holosun IRIS‑RD4 is not a red dot sight or reflex optic; it is a 4‑in‑1 tactical laser‑light block that combines a 1000‑lumen white LED, an IR illuminator, an IR laser and a visible 660 nm red laser. Instead of projecting a collimated dot in a glass‑based reticle window, the IRIS‑RD4 projects light sources and beams onto the environment and target surfaces. It can complement rail‑mounted reflex optics and red or green dot sights, but it should be selected based on the need for lighting and laser‑based aiming cues rather than a conventional Holosun reflex optic.

How does the visible red laser on the IRIS‑RD4 compare to a green or red dot on a Holosun sight?
The visible red laser on the Holosun IRIS‑RD4 projects a 660 nm spot onto the target, which is useful for quick designation and low‑light marking, while a Holosun red dot or green dot sight creates an illuminated reticle inside a reflex or glass‑based optic that appears “on” the lens. Red dots are generally easier on the eyes and more power‑efficient; green dots often appear brighter in daylight and at longer distances but may use more battery. The IRIS‑RD4’s class 3R red laser (1–5 mW) does not replace a reflex‑optic red or green dot, but it can be combined with one on the same rail platform to create a versatile European‑oriented sport‑shooting or field‑oriented setup.

How durable is the Holosun IRIS‑RD4 for outdoor and sport‑shooting conditions?
The Holosun IRIS‑RD4 is constructed from hard‑anodized 7075‑T6 aluminum, making it 43% lighter, 29% lower and 28% narrower than older Holosun laser blocks while still being extremely rigid. The housing is rated IPX8, meaning it is fully waterproof and can withstand brief submersion, and it is shock‑rated to 1000 G, so it holds up well under repeated vibration and recoil‑like stresses. With an operating temperature range of –20 °C to +51 °C (and storage up to +70 °C), the IRIS‑RD4 is suitable for typical European weather, from cold winters to warm‑summer field use. Buying from Holosun Croatia, an authorized Holosun dealer, ensures you receive a unit built to these durability standards with full EU‑valid manufacturer support.

Which rail setups is the Holosun IRIS‑RD4 compatible with?
The Holosun IRIS‑RD4 is designed for standard rail‑mounted platforms, meaning it fits onto common Weaver/Picatinny‑style interfaces used on many European‑oriented optics and accessories. The compact dimensions (107 × 58 × 36 mm) and 241 g weight allow the block to integrate smoothly into moderate‑sized rails without overloading the balance of the platform. The unit can be mounted and remounted with a repeatable zero as long as the rail interface remains stable. As an authorized Holosun dealer in Croatia, Holosun Croatia supplies the IRIS‑RD4 with compatible hardware and guidance on how to achieve a consistent, vibration‑resistant mount for your rail‑based optics or sport‑oriented build.

Does the Holosun IRIS‑RD4 come with an official EU warranty when purchased from Holosun Croatia?
Yes, when you buy the Holosun IRIS‑RD4 from Holosun Croatia, you receive an official EU warranty provided by the manufacturer through an authorized Holosun dealer. This means repairs, replacements and technical support are handled under European‑market rules, with local documentation available in Croatian and English and EU‑based service processes. The warranty covers defects in materials and workmanship under normal use, and the Holosun Croatia team can assist with warranty claims, diagnostics and coordination of returns. Choosing an authorized Holosun dealer in Croatia ensures you are not limited to global warranty‑only channels but benefit from faster, EU‑linked support instead.

Is the Holosun IRIS‑RD4 suitable for hunting and sport‑shooting use in Europe?
The Holosun IRIS‑RD4 can be a useful component in sport‑shooting and certain hunting‑oriented optics setups, especially where versatile illumination (white light, IR illuminator) and laser‑based aiming cues are helpful. The 1000‑lumen white LED is effective for target‑area assessment and low‑light orientation, while the IR illuminator and IR laser are suited for night‑vision‑assisted use when permitted by local regulations. The 660 nm red laser provides a clear reference in daylight and twilight, but you must follow national laws on laser‑based sighting aids and any restrictions on hunting‑use lasers. Holosun Croatia, as an official retailer, can provide guidance on configuring the IRIS‑RD4 in lawful, compliant setups for sport‑oriented platforms.

How does the IRIS‑RD4 differ from a pure Holosun red dot or reflex sight in a European setup?
The Holosun IRIS‑RD4 complements but does not replace Holosun red dot or green dot sights. The IRIS‑RD4 delivers light and laser outputs (white LED, IR illuminator, IR laser, visible red laser), whereas a Holosun reflex or red/green dot sight uses an illuminated reticle inside a collimated optic to give a stable aiming point on the lens. Reflex‑based red or green dot sights are better for repeated aiming, flexible head positions and long‑duration target practice, while the IRIS‑RD4 improves visibility of the environment and enables fast laser‑based designation. Many European sport‑shooters pair a Holosun reflex sight with an IRIS‑RD4‑style laser‑light block on the same rail platform, creating a balanced, multi‑function setup without relying on combat‑oriented language or military framing.

Order the Holosun IRIS‑RD4 tactical laser‑light block from Holosun Croatia and integrate a compact, multi‑function 1000‑lumen / IR / red‑laser solution into your rail‑mounted optics setup.