The RSW1 Remote Pressure Switch from Nitecore replaces the stock tailcap on compatible flashlights for safe use with weapon-mounted lights. Its coiled cable extends to over 15", allowing you to precisely place it according to your personal preference. The pressure pad attaches where ever your stabilizing hand goes, providing momentary-activation for the light while keeping both hands on your weapon. A pushbutton switch on the side of the tailcap gives you constant-on for prolonged use.