PERST 4 Pointer Optics Green Blue Laser / IR Laser Sight KV-D2 Switch US. Shell color :Black if you need Tan Color, you can message us, thank you!!! 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-D2 switch (in the kit)can be installed on picatinny rails and 1913 rails. This product contains 2 laser functions. Green Laser light source: wavelength – 635 nm. IR light source: wavelength – 850 nm. Power supply: CR123A / battery (3 V). Effective range in the dark. Red beam: 300 ± 100 m. IR beam: 400 ± 100 m. Product weight without batteries: no more than 210 g. Overall dimensions: (37? 60? 91) ± 3 mm. 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-1P Wire Control Switch. Two small circular buttons on the main unit to adjuest the laser brightness. Fit For: 20mm Picatinny Rail. Please list your special requests color, packages, etc. Our working hours Beijing time from 9:00 a. To 18:00 p. For defective items (excluding items damaged and/or misused after receipt). It from the date it was received. In the original packaging. Specific reason for the return, and. OR, you may choose to have a replacement. Our office hours are: 9:00 a. M to 6:00 p. M (GMT +8) of Monday to Saturday. And our office is closed on Sunday and public holidays (China). We apologize for the late reply during the holidays. Feedback is very important to us. Excludes weekends and holidays. If you are satisfied with our products and service. Please do not forget to leave a good review to us, thanks! For all orders, please note that.