Holosun IRIS-GR3

The Holosun IRIS-GR3 (Integrated Rifle Infrared System) combines co-aligned visible green and infrared aiming lasers in a redesigned package that is 43% lighter and 20% lower in profile than the previous LS321 series. Constructed from 7075-T6 aluminum, the IRIS-GR3 features a Class IIIr (5mW) visible green laser, Class 2m (0.7mW) IR laser, and 60mW VCSEL IR illuminator. This integration allows precise zeroing during daylight using the visible laser with seamless transition to IR functionality for night operations.

The VCSEL (Vertical-Cavity Surface-Emitting Laser) technology used in the IRIS-GR3 eliminates the granular, speckled illumination pattern common in traditional IR illuminators, providing smooth, consistent infrared lighting. The system offers 1/2 MOA per click adjustments with a total adjustment range of 100 MOA for both windage and elevation, allowing precise zeroing across various platforms and distances. An IPX8 waterproof rating ensures reliable operation even in complete submersion.

At 6.4 ounces, the IRIS-GR3 represents a significant weight savings over competing systems while maintaining professional-grade performance. The compact design reduces the visual signature on the rifle and minimizes interference with other accessories. While the IR illuminator power is limited by civilian eye-safety regulations, the VCSEL technology maximizes effective range within these constraints, making the IRIS-GR3 an excellent choice for users prioritizing weight savings and clean illumination patterns.