LaserMax Green Guide Rod Laser for Glock 20/21/41 Gen 4, Black - LMSG41151G

This guide rod laser replaces the factory spring guide assembly with a high-intensity green laser (520nM wavelength, 5mW power) for enhanced target acquisition on compatible Glock pistols. The system features a 0.63" dot size at 20 yards with an effective range of 50 meters and is constructed from aircraft-grade aluminum with genuine Wolff springs. Installation is user-friendly and requires no gunsmithing or special tools.