Crimson Trace Laserguard Red Laser Sight Black 5mW 620-670nm for Heckler Koch VP9/VP40 and VP9SK Pistols LG-499. Crimson Trace designed these Red Laser Sights with their Instinctive Activation technology that powers the unit on when your weapon is held in a natural firing grip creating a smooth and simple process that won't interfere with your shooting habits. This Crimson Trace LG-499 Red Laserguard is user-installed and features adjustable windage and elevation to ensure peak accuracy in any environment. Add massive utility to your handgun with the compact and rugged Crimson Trace LG-499 H&K Laserguard. Specifications for Crimson Trace LG-499 Laserguard Red Laser Sight for Heckler and Koch: Manufacturer: Crimson Trace Color: Black Beam Color: Red Finish: Polymer Housing Laser Output: 5 mW Battery Type: 1/3N Lithium Battery Life: 4 Hours Battery Quantity: 1 Gun Make: Heckler & Koch Gun Model: Heckler & Koch VP9 SK Heckler & Koch VP40 Heckler & Koch VP9 Fabric/Material: Polymer Condition: New Mount Type: Trigger Guard Mount Features of Crimson Trace LG-499 Laserguard for Heckler & Koch VP9 VP9SK VP40: Polymer Housing with Rubber Overmold Activation Pad User Installed Laser Battery Life: Over Four Hours Pressure Activated Factory Sighted at 50ft User Adjustable Windage and Elevation Three Year Full Warranty Package Contents: Crimson Trace LG-499 Laserguard for Heckler & Koch VP9 VP9SK VP40 Battery Cleaning Swabs Adjustment/Installation Tool What firearm models does the manufacturer say Crimson Trace LG-499 Laserguard Red Laser Sight for Heckler and Koch is compatible with? The manufacturer says that Crimson Trace LG-499 Laserguard Red Laser Sight for Heckler and Koch is compatible with Heckler & Koch VP9 Heckler & Koch VP40 Heckler & Koch VP9 SKCrimson Trace LG-499: Laserguard Red Laser Sight Black 5mW 620-670nm for Heckler Koch VP9/VP40 and VP9SK Pistols