Red laser sight for Smith & Wesson’s M&P Shield 9mm and .40 S&W concealed carry pistol. Features Instinctive Activation, which allows the user to activate the laser sight by simply gripping the pistol in a normal firing grip. Fully user-adjustable for windage and elevation and up to four hours battery life. Boxed with hanging tab. Uses (1) CR1/3N battery (included).