100% Brand New Laser Red Dot Cartridge Bore Sight Sighter 9mm Laser Sight Boresighter for Training and Shooting Simulation we designed the laser bullet for training and shooting simulation. Not fit SigSauer P250/320!! The laser will turn on for about 0.5seconds when the trigger is pulled and will turn off automatically. The laser will turn off even if the firing-pin is pressing of the end cap of the bullet. 1. 9mm Red Laser 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. Bore Sight Applications: a. Gun calibration b. Simulation of ballistic 3. Caliber Laser Bore Sight 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 Laser Bore Sight Specifications: Laser Wavelength: 635nm Type: Visible Red Laser Power: 5mW Battery: 3 x LR41 / 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 +50° Life Span: >8,000hrs 5. In the box: 1 x 9mm Laser Bullet 1 x Rubber Pad 3 x LR626 Battery