Full metal high quality version Material: Metal Fit For: 20mm Picatinny Rail Perst-4 is used to point targets when observing, inspecting and watching small arms shooting at night. This product is a small optical mechanical device that forms laser radiation flux. This product is installed on Picatinny rails. The KV-5PU swtich (in the kit)can be installed on picatinny rails and 1913 rails. Perst-4 contains 2 laser functions: Green VIS laser source: wavelength – 635 nm IR laser source: wavelength – 850 nm Battery type: 1 CR123A battery (3v / 3.7v). (Not included) Effective range in the dark: VIS Green Laser beam: 300 ± 100 m. IR laser beam: 400 ± 100 m. Overall dimensions: (37? 60? 91) ± 3 mm. Full metal high quality version. Fit For: 20mm Picatinny Rail. Perst-4 is used to point targets when observing, inspecting and watching small arms shooting at night. Perst-4 contains 2 laser functions. Green VIS laser source: wavelength – 635 nm. IR laser source: wavelength – 850 nm. Battery type: 1 CR123A battery (3v / 3.7v). Effective range in the dark. VIS Green Laser beam: 300 ± 100 m. The triangular area on the host can switch between visible laser and IR. On the top or side of the host, the round switch is turned on. Turn on through the KV-5PU Wire Control Switch. Two small circular buttons on the main unit to adjuest the laser brightness. If you do not receive your item on time, please firstly go to your local post office to check if the package is left there. It happens sometimes when the receiver is not at home. Return without notice is not acceptable. If items defect after 30 days, you can still send it back to us. We wil do our best to deal with all issues you asked. Brightness Settings, Green Laser, Lightweight.
