LaserLyte Laser Trainer Pistol Cartridge Kit - 380/9/40/45 LaserLyte Laser Cartridges The new Laser Trainer Cartridge Kit comes with all four popular pistol calibers for the price of three, saving you money on live ammo and Laser Trainers! The Laser Trainer Cartridge is the most realistic training option. Increasing accuracy and overall hits with affordable and fun laser training tools. Power Output: 650nm, 5mW, Class IIIa