Holosun Technologies  |  SKU: RSR-HSIRIS-GR4
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Holosun Technologies - IRIS-GR4 Quad Laser & IR Illuminator

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Description

Holosun IRIS-GR4 Quad Laser & IR Illuminator is a cutting-edge, professional-grade aiming and illumination system built for tactical precision and all-environment performance. Crafted from 7075-T6 aluminum with a hard-anodized finish, the IRIS-GR4’s redesigned housing is 43% lighter, 29% lower, and 28% narrower than the legacy LS420—ideal for modern PDWs, SBRs, and rifle platforms where space and balance matter.

This quad-function system combines a co-aligned visible green laser, infrared (IR) aiming laser, 60mW VCSEL-based IR illuminator, and a powerful 1,000-lumen white light producing 25,000 candela. Operators can transition seamlessly between day, night, and low-light engagements, using the visible laser for daylight zeroing and maintaining precision alignment across both visible and IR spectrums.

Key Features:

  • Quad-function system: visible green laser, IR laser, 60mW IR illuminator, and 1,000-lumen white light
  • Precision-milled 7075-T6 aluminum body—43% lighter, 29% lower, and 28% narrower than the LS420
  • Co-aligned laser system for simplified zeroing and consistent point-of-aim
  • Top-mounted IR beam slider adjusts from wide flood to focused spot (15–150 MRAD)
  • Dual independent fire buttons for ambidextrous laser and light activation
  • Rear-positioned mode and power selector for quick, intuitive operation
  • Triple-button remote with Crane plug and visible laser override
  • Operates on two CR123A batteries (included) or one rechargeable 18650 (not included)
  • Waterproof (IPX8), vibration rated to 1000G, and optimized for field reliability

Specifications:

IR Illuminator Output: 60mW VCSEL (Class 1)
IR Laser Output: 0.7mW VCSEL (Class 1)
Visible Laser Output: 5mW (Class 3R)
White Light Output: 1,000 Lumens / 25,000 Candela
Battery Type: 2x CR123A (included) or 1x 18650 (not included)
Adjustment per Click: 0.5 MOA
Housing Material: 7075-T6 Aluminum
Dimensions (in): 4.2 x 2.3 x 1.4
Weight: 8.5 oz
Operating Temperature: -30°C to 60°C
Storage Temperature: -40°C to 70°C
Submersion Rating: IPX8

In the Box:

  • Holosun IRIS-GR4 Quad Laser & Illuminator
  • Triple-button pressure pad (Crane plug)
  • 2x CR123A batteries
  • User manual and adjustment tools

The Holosun IRIS-GR4 delivers unmatched versatility and reliability for professional operators, night vision users, and serious enthusiasts. Whether for law enforcement, military, or civilian tactical setups, this quad-function laser and light module ensures readiness and precision across any lighting condition.

Help me choose:

Model Family Core Functionality Key Additions / Upgrades
IRIS-1 (RD1 / GR1 / IR1) Single-function: visible red or green laser (or IR laser in IR1) in a compact, low-profile housing. Base model with visible or IR laser only. No IR illuminator or white light. Ideal for basic daylight or NVG aiming.
IRIS-2 (RD2 / GR2) Dual-function: visible laser (red or green) plus an IR aiming laser (co-aligned). Adds IR pointer for night-vision compatibility. Compact and efficient for low-light operations.
IRIS-3 (RD3 / GR3) Triple-function: visible laser + IR laser + IR illuminator. Adds a 60 mW VCSEL IR illuminator for enhanced NVG performance. Allows illumination and aiming in total darkness.
IRIS-4 (RD4 / GR4) Quad-function: visible laser + IR laser + IR illuminator + white light. All-in-one system combining full daytime, nighttime, and white-light functionality. Top-tier performance for professional and tactical use.

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Frequently Asked Questions

What makes the Holosun IRIS-GR4 suitable for tactical use?

The Holosun IRIS-GR4 is designed for tactical precision and versatility, making it ideal for professional operators. Constructed from durable 7075-T6 aluminum, it is significantly lighter and more compact than previous models, ensuring it doesn't add unnecessary weight to your setup. The quad-function system includes a visible green laser, IR aiming laser, IR illuminator, and a powerful white light, allowing seamless transitions between different lighting conditions. This makes it particularly useful in dynamic environments where quick adaptation is crucial.

How does the co-aligned laser system benefit users?

The co-aligned laser system in the IRIS-GR4 simplifies the zeroing process and ensures consistent point-of-aim across both visible and IR spectrums. This means that once you have zeroed your visible laser, your IR laser is also zeroed, saving time and reducing complexity. This feature is particularly beneficial in high-stress scenarios where precision and speed are paramount. It allows operators to maintain accuracy without needing to adjust settings for different lighting conditions.

What are the power options for the Holosun IRIS-GR4?

The Holosun IRIS-GR4 can be powered by two CR123A batteries, which are included, or a single rechargeable 18650 battery, which is not included. This dual power option provides flexibility depending on your operational needs and availability of batteries. CR123A batteries are widely available and offer reliable performance, while the 18650 battery option can be more economical in the long run if you have access to charging facilities. This adaptability ensures the IRIS-GR4 is ready for extended missions or rapid deployments.

How does the IR beam slider enhance the IRIS-GR4's functionality?

The top-mounted IR beam slider allows users to adjust the beam from a wide flood to a focused spot, ranging from 15 to 150 MRAD. This feature provides enhanced control over the illumination spread, making it adaptable for different tactical scenarios. Whether you need a broad area of light for general visibility or a concentrated beam for pinpoint accuracy, the IR beam slider offers the versatility to meet those needs. This adaptability is crucial for operations in varied environments, from open fields to urban settings.

What are the benefits of the dual independent fire buttons on the IRIS-GR4?

The dual independent fire buttons on the IRIS-GR4 allow for ambidextrous activation of the laser and light functions. This design ensures that operators can quickly and easily switch between functions without having to adjust their grip or position. In high-pressure situations, the ability to activate the desired function with either hand can be a significant advantage, enhancing both speed and operational efficiency. This feature is particularly beneficial for left-handed users or when operating in confined spaces.

How does the IRIS-GR4 perform in adverse weather conditions?

The Holosun IRIS-GR4 is designed to withstand harsh environmental conditions, featuring an IPX8 waterproof rating and vibration resistance up to 1000G. This makes it suitable for use in wet, dusty, or high-impact environments, ensuring reliability when it matters most. Whether you're operating in heavy rain or during high-movement scenarios, the IRIS-GR4 maintains its functionality, providing consistent performance without the risk of water damage or operational failure.

What is the significance of the 1,000-lumen white light in the IRIS-GR4?

The 1,000-lumen white light in the IRIS-GR4 provides powerful illumination, producing 25,000 candela. This high output is crucial for situations requiring maximum visibility, such as search and rescue operations or identifying targets in low-light environments. The intense brightness can also serve as a deterrent or disorienting tool against adversaries, adding a tactical advantage. However, users should be mindful of battery consumption at this output level, as higher brightness settings will drain batteries more quickly.

Can the IRIS-GR4 be used with night vision devices?

Yes, the IRIS-GR4 is fully compatible with night vision devices, thanks to its IR laser and IR illuminator. The IR laser provides a precise aiming point that is invisible to the naked eye but visible through night vision equipment, allowing for covert operations. The IR illuminator enhances visibility in total darkness, making it easier to identify and engage targets without revealing your position. This capability is essential for tactical operations conducted under the cover of darkness.

How does the IRIS-GR4's design improve ergonomic handling?

The IRIS-GR4's design is optimized for ergonomic handling, featuring a compact and lightweight profile. The redesigned housing is 43% lighter and 28% narrower than previous models, reducing the overall footprint on your firearm. This allows for better balance and maneuverability, particularly on PDWs, SBRs, and rifle platforms. The intuitive placement of controls ensures that adjustments can be made quickly and easily, enhancing the overall user experience during high-intensity operations.

What are the operational temperature ranges for the IRIS-GR4?

The Holosun IRIS-GR4 is designed to operate efficiently in a wide range of temperatures, from -30°C to 60°C. This broad operating range ensures that the device can be used in extreme cold or hot environments without compromising performance. Whether you're in arctic conditions or desert heat, the IRIS-GR4 maintains its functionality, making it a reliable choice for diverse operational settings. Proper storage conditions, ranging from -40°C to 70°C, further enhance its durability and longevity.