- The LG-489G Is A Seamlessly Integrated Green Laser Sight For Smith & Wesson's M&P Shield 9mm And .40 S&W Concealed Carry Pistol. This Laserguard® Is Designed To Match The Unique Design Of The Pistol, And Features Our Patented Instinctive Activation™ - Meaning The Laser Is Activated When The Gun Is Held In A Natural Firing Grip. Quickly Installed With No Gunsmithing Required, The LG-489G Is Also Fully Adjustable For Windage And Elevation. Features A Powerful Green Laser Diode For Improved Laser Targeting In All Lighting Conditions.