Introducing the brass beam - the ultimate dry fire training tool for firearm enthusiasts.With this innovative device, you can turn your firearm into a laser training tool that allows you to practice shooting skills in the comfort of your own home.The brass beam is designed to be inserted into your firearm, where it replaces a regular round.When the firing pin strikes the back of the brass beam, it creates a laser pulse that is recorded by the brass app software.This allows shooters to analyze performance and improve technique, without ever having to fire a live round.Thanks to its compact size and easy-to-use design, the brass beam is perfect for both novice and experienced shooters.It's an affordable way to hone skills and improve accuracy, whether a law enforcement officer, competitive shooter, or just looking to improve skills for personal defense.This product is a class 3r laser that complies with ice 60825-1:2014.2.6mw max output at 653nm.Included are 1.5v button cell batteries.Caliber: 9mmMaterial: Brass