Description
This compact quad-function laser system delivers professional-grade infrared and visible aiming with 1,000-lumen white light in one streamlined, battle-ready package.
The Holosun IRIS-RD4 eliminates the need for multiple rail-mounted accessories by combining four essential functions into a single, lightweight unit that weighs just 8.5 ounces. Whether you’re transitioning between daylight operations and night vision engagements or need instant access to high-intensity illumination, this system simplifies your setup while improving your rifle’s handling characteristics. The co-aligned laser design means you can zero both visible and IR lasers simultaneously using daylight conditions, saving time and ammunition during setup.
Key Features
- Quad-Function Integration: Combines visible red laser, IR aiming laser, 60mW VCSEL IR illuminator, and 1,000-lumen white light in one compact housing, eliminating the need for multiple separate devices
- Redesigned Lightweight Construction: Precision-machined from 7075-T6 aluminum with a housing that’s 43% lighter, 29% lower, and 28% narrower than the legacy LS420 model, optimizing weight distribution and rail space
- Adjustable IR Beam Divergence: Top-mounted slider enables on-the-fly adjustment of the IR illuminator’s beam pattern from wide flood to tight spot, adapting to engagement distances from close quarters to 300 yards
- Ambidextrous Dual Fire Buttons: Independent tactile controls allow separate activation of lasers and white light with either hand, providing intuitive operation even with gloved hands in high-stress situations
Important Compatibility Notes
- Mounts to any standard Picatinny rail system
- Included three-button remote switch uses industry-standard Crane plug (compatible with aftermarket Crane-style switches)
- Night vision capability requires separate night vision devices (NODs) for IR function use
Why We Carry It
The Holosun IRIS-RD4 represents a significant shift in the civilian night vision market by delivering performance previously available only at military contract prices. User reviews and forum discussions consistently praise this system for its clean VCSEL beam output, which avoids the bloom and splash issues common in budget IR lasers, and its rugged 7075 aluminum construction that maintains zero even under extended firing sessions. The IPX8 waterproof rating and 1000G vibration resistance demonstrate Holosun’s commitment to field-ready durability. We stock this laser system because it solves the common problem of rail clutter—instead of mounting separate lasers, illuminators, and lights, shooters get a unified solution backed by Holosun’s lifetime warranty on housing and optics, with a 10-year warranty on electronics.
Frequently Asked Questions
Can I zero the IR laser without using night vision equipment?
Yes. The visible and IR lasers are co-aligned, meaning you can zero both simultaneously using only the visible red laser in daylight conditions. Once the visible laser is properly zeroed, your IR laser will maintain the same point of aim when viewed through night vision devices.
How does the adjustable IR illuminator work, and when should I use different beam patterns?
The top-mounted slider adjusts the IR illuminator from a wide flood pattern (ideal for close-quarters navigation and target identification within 50 yards) to a tight spot pattern (optimized for longer-range engagements up to 300 yards). Adjust based on your environment—use flood for indoor or wooded areas where you need peripheral awareness, and spot for open terrain or precision shots at distance.
What’s the expected battery life, and should I use CR123A or 18650 batteries?
Battery life varies significantly based on which functions you use and how frequently. White light and IR illuminator drain batteries faster than lasers alone. Two CR123A batteries offer reliable cold-weather performance and are included with the unit. A single 18650 rechargeable battery provides a cost-effective option for training and extended use, though you’ll need to purchase it separately.
Spec Sheet
ELECTRONIC SPECS
- Power Source: Battery
- Battery Type: CR123A (2x included) or 18650 (1x not included)
- Battery Life: Varies by mode
- Brightness Settings: Multiple modes available
PHYSICAL SPECS
- Dimensions: 4.2 × 2.3 × 1.4 inches
- Weight: 8.5 oz
MECHANICAL SPECS
- Housing Material: 7075 T6 Aluminum
- Surface Finish: Hard Anodize
- Adjustment per Click: 0.5 MOA
- Windage & Elevation Travel Range: 100 MOA total
ENVIRONMENT SPECS
- Storage Temperature: -40°C to 70°C
- Working Temperature: -30°C to 60°C
- Water Resistance: IPX8 (submersible)
- Vibration Resistance: 1000G
ILLUMINATOR SPECS
- White LED Output: 1000 Lumens
- White LED Candela: 25,000
- Laser & Illuminator Type: Dual Laser & Dual Illuminator
- IR Illuminator: VCSEL 60mW (Class 1)
- IR Pointer Output: <0.7mW (Class 1)
- Visible Laser: <5mW (Class 3R, Red)
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