LaserMax LMSG41151G Guide Rod Laser Green 5mW 532 nm Wavelength Black for Glock 20,21,41 Gen4

The LaserMax Guide Rod Laser for GLOCK meets or exceeds both Mil Spec and Homeland Security durability test standards (drop tests, blowing sands, temperature and humidity extremes, salt water fog, deep water immersion, 20,000+ rounds live fire). Installation is quick and as easy as field striping the weapon. A pulsing laser beam gives effortless awareness of muzzle and transcends language barriers. It can be used outdoors from dusk until dawn or indoors around the clock. All Guide Rod Lasers c