
Glock 20 Gen 4 Green Laser Performance. The Glock 20 Gen 4 green laser is engineered specifically for Glock 20 (Gen 4), Glock 21 (Gen 4), and Glock 41 (Gen 4) pistols. The LMS-G4-1151G replaces the factory recoil spring guide assembly with a rugged internal green laser sighting system built for advanced target acquisition. Its proximity to the bore provides maximum POA/POI accuracy and consistent alignment for center-of-mass shots. Constructed with aircraft-grade aluminum and genuine Wolff springs, this Guide Rod Laser is built for long-term durability and dependable performance. Does not restrict grip selection. Does not interfere with holster compatibility. Because the laser replaces the factory guide rod assembly, there are no external mounting components altering the pistol’s profile. Programmable Green Laser Output. The high-intensity green laser is user programmable for. The system is factory-aligned to stock ballistics to ensure consistent POA/POI accuracy right out of the box. Designed for Glock 20, 21 & 41 (Gen 4). Replaces factory recoil spring guide assembly. User programmable pulse or steady beam. Internal design preserves grip and holster options. Factory-aligned for guaranteed POA/POI accuracy.


