Give your handgun an instant tactical upgrade with the Viridian® R5-5-238/938 Green Laser Sight! This topnotch accuracy upgrade Green Laser Sight shows you where to aim with lethal precision. It integrates seamlessly into the trigger guard of your Sig Sauer to put you on target fast and with maximum accuracy. Plus, it includes a sleek instant-onTM ECRTM holster that activates the laser when drawn. No fumbling with buttons in critical situations... when you draw, it's on.