The Sight Line by Truglo is the laser that everyone wants on their firearm. It features ambidextrous push-button power switches, tough polymer housing material, windage/elevation adjustments, and the maximum Class 3R beam legally allowed. Powered by a single CR 1/3N lithium battery to ensure an 8-hour non-pulsing life and an 18-hour pulsing-life. The Sight-Line has an auto-off after 5 minutes. Compatible with Picatinny, Weaver, Glock and many other pistol rails.