LaserLyte Laser Trainer Barrel  Glock 19/23 Laser Trainer barrel for the GLOCK 19 (Gen 1 thru 4) and GLOCK 23 Shoots a laser dot simulating bullet impact and providing feedback. The Laser Trainer Barrel does not and will not accept ammo making it a perfectly safe anytime/anywhere training tool. A built-in snap cap also protects the firing pin from repeated dry firing. Shooters and professionals on the target faster, increasing accuracy. Power Output: 650nm, 5mW, Class IIIa