Crimson Trace Lasergrip for Glock-G-Series 19 Made in America Instinctive Activation Ergonomic Design Class IIIA laser; 5mW or less Laser grip designed for Glock compact pistols Instinctive rear activation; fully adjustable for windage and elevation No gunsmithing or frame modifications required for installation Grip attachment; hard polymer and rubber construction Runs on pair of 2032 lithium batteries; 3-year warranty