Crimson Trace Laserguard Green Laser Sight Black 5mW 515-532nm for Heckler and Koch VP9/VP40 and VP9SK Pistols LG-499G. Featuring a 5mW peak 515-532nm Class 3R green laser beam the LG-499G is operated by Crimson Trace's famed Instinctive Activation which allows the unit to spring to life with a normal firing grip. This model features a front activation button. As with all Crimson Trace laser sights this Laserguard is easily user-installed in moments with zero modification to the firearm. It is factory sighted at 50' but is fully user-adjustable for windage and elevation with provided tool. The LG-499G features a Master On/Off Switch for completely powering down the unit if desired. The LG-499G Laserguard is eligible for our Free Batteries For Life program. Specifications for Crimson Trace LG-499 Laserguard Green Laser Sight for Heckler and Koch: Manufacturer: Crimson Trace Color: Black Beam Color: Green Finish: Polymer Housing Laser Output: 5 mW Battery Type: 1/3N Lithium Battery Life: 2 hours 2 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 Green Laser Sight for Heckler and Koch: Product Type Laserguard Material Polymer Color Black Activation Location Front Activation Attachment Trigger Guard Battery Type One 1/3N Lithium Battery Finish Polymer Housing with Rubber Overmold Activation Pad Installation User Installed Laser Battery Life Over Two Hours Activation Mode Pressure Activated Sighting Factory Sighted at 50' User Adjustable Windage and Elevation Warranty Three Year Full Warranty Wrench Size 0.05 Dot Size Approx 0.50" at 50' Included Accessories: Battery Cleaning Swabs Adjustment/Installation Tool Package Contents: Crimson Trace LG-499 Laserguard Green Laser Sight for Heckler and Koch VP9/VP40 & VP9SK What firearm models does the manufacturer say Crimson Trace LG-499 Laserguard Green Laser Sight for Heckler and Koch is compatible with? The manufacturer suggests that Crimson Trace LG-499 Laserguard Green Laser Sight for Heckler and Koch is compatible with Heckler & Koch VP9 Heckler & Koch VP40 Heckler & Koch VP9 SKCrimson Trace LG-499G: Laserguard Green Laser Sight Black 5mW 515-532nm for Heckler and Koch VP9/VP40 and VP9SK Pistols