The LaserLyte Laser Trainer Pistol Cartridges allow you to train with your defensive pistol without any ammunition cost or the need to go to the range. Laser Trainer Pistol Cartridges are simply inserted into the chamber of your pistol and will then produce a laser dot on your target every time you press the trigger. The cartridges are available in .380ACP, 9mm, .40 S&W and .45ACP calibers. They are quickly removed from the chamber using a cleaning rod and you can then reload your gun for defensive use without any modification. Laser Training Cartridges can be used with paper targets or any of LaserLyte’s reactive target systems.