This is laser trainer cartridge not laser bore sight. It can help you shooting more accurately. 9mm Laser training bullet, laser bullet tactical red dot, laser trainer cartridge for dry fire training and shooting simulation we designed the laser bullet for training and shooting simulation. 1. 9mm Red Dot Laser Training Bullet Introduction: The caliber 9mm bullet is a red laser Bore Sight for training and shooting simulation. The maximum laser output power is 5.0mW at 635-660nm with high quality brass and gold-plated material. 2. Trainer Bullet Applications: a. Gun calibration b. Simulation of ballistic 3. Caliber Laser Training Bullet Features: a. High brightness good looking housing: brass with gold-plated. b. High precision: off axis angle is 0.1mrad. c. Less power consumption: 4.5VDC low operating voltage. d. Long life: 8000 Hrs. e. More efficiency. f. Compact and lightweight. g. Series product. 4. 9mm Red Training Laser Bullet Specifications: Laser Wavelength: 650nm Type: Visible Red Laser Power: 3mW Battery: 3 x LR626 Offaxis Angle: 0.1mrad Range for Sighting: 5-100 yards Dot Size: 1 inches at 25 yards Construction: Brass, gold-plated Temperature: -10 to +50deg Life Span: 8,000hrs 5. In the box: 1 x 9mm Laser Bullet 1 x Rubber Pad 3 x LR626 Battery The laser will always turn on when the trigger is pulled or the firing-pin is pressing of the end cap of the bullet.