Lasermax LMS1151G Laser Sight 798816542622 LaserMax LMS1151G Guide Rod Laser 5mW Green Laser with 520nM Wavelength, 20 yds Day/300 yds Night Range & Made of Aluminum for Glock 20, 21, 41 Gen1-3Designed specifically for use in Glock 20... MSRP: Was: Now: $272.16 Add to Cart