For use on Glock 19/23/32/38 (Gen 1-3) Proudly presenting guide rod laser compatible with Glock 19/23/32/38, versatile in nature, durable and long lasting. One of the most important feature of this gun laser it has Native Green Technology and Pulsed for increased visibility. Quality is assured and maintained up-to a certain level laser color is ambidextrous with tap on/tap off switch reinforcing safe firearm handling features. Best laser has Internal design will not interfere with holster or grip selection Class IIIa Laser Product: &lt;5mW power output.