The Crimson Trace LG-499G Laserguard Green Laser is a high-quality accessory designed specifically for H&K VP9, VP40, and VP9SK handguns. The laser is compatible with 1/3n batteries and can be easily installed by the user on the handgun’s rail. Made from durable polymer material, this laser sight is perfect for shooting sports and hunting activities. With its red and green reticle colors and sub-compact compatibility, the Crimson Trace Laserguard is a reliable and innovative tool for improving your accuracy and target acquisition. Never used, but I did toss the box already. I did put a battery in it and tested it before listing. I’m discounting it because there is no box or other items included.