Holosun IRIS 4 Quad Function Illuminator & Green Laser/Infrared System IRIS-GR4

Holosun IRIS 4 IRIS-GR4 – Overview –

The Holosun IRIS-GR4 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-GR4 combines a co-aligned visible green 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-GR4 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-GR4 can be powered by two CR123A batteries (included), or one rechargeable 18650 battery (not included) —delivering reliable performance in any environment.

Items Dimensions (in inches)

In the Box

• 1x IRIS-GR4
• 1x Triple Button Pressure Pad

– Specification –

• IR Illuminator: 60mW VCSEL
• • IR Laser: 0.7mW VCSEL
• • Green / Red Laser: 5mW
• • LED Light: 1,000 Lumens / 25,000 Candela
• • Battery Type: 2x CR123A (included) / 18650 (not included)
• • Weight: 8.5oz

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The Holosun IRIS 4 IRIS-GR4 is an advanced dual-laser aiming system designed for professional, tactical, and night-vision-equipped shooters who require precision, durability, and versatility in demanding environments. Engineered with Holosun’s proven electronics and rugged construction, the IRIS 4 delivers dependable visible and infrared aiming solutions for both daytime and low-light operations.

Featuring a high-visibility green visible laser paired with an infrared (IR) laser, the Holosun IRIS 4 allows seamless transitions between standard shooting and night-vision use. The green laser offers excellent visibility in bright daylight conditions, while the IR laser is optimized for use with night vision devices, providing discreet and precise aiming without visible signature to the naked eye.

Housed in a compact, durable aluminum body, the IRIS-GR4 is built to withstand recoil, impact, and harsh environmental conditions. Its low-profile design integrates cleanly with modern rifle and carbine platforms, maintaining balance while allowing compatibility with other accessories. Precision windage and elevation adjustments ensure accurate zeroing and repeatable performance.

User-friendly controls allow fast switching between laser modes, supporting dynamic mission requirements and training scenarios. Whether used for duty applications, tactical training, or advanced civilian setups, the Holosun IRIS 4 IRIS-GR4 delivers reliable performance and modern laser capability.

For shooters seeking a robust, dual-laser aiming solution that excels in both visible and night-vision environments, the Holosun IRIS 4 stands out as a dependable, mission-ready choice.