This listing is for a new SOTAC PERST-4 aiming IR green laser sight with a tactical switch. It appears suited to buyers looking for a laser sight setup and who want the PERST-4 model specifically. The condition is listed as new, which may matter if you are comparing it with used or surplus options. Free shipping is included, which can help when weighing total purchase cost. Because the provided details are limited, this introduction focuses on the model and item type without adding unconfirmed specifications. If you are checking compatibility, setup needs, or included parts such as the switch or reset/open details, check the listing for full details. Metal PERST- 4 Aiming IR Green Laser Sight with Tactical Switch Reset Open SOTAC. Condition: New. Listed at 110.31 USD. Material: Metal This productis 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). (Not included) Effective range in the dark: red beam: 300 ± 100 m.; IR beam: 400 ± 100 m. 1. The triangular area on the host can switch between visible laser and IR 2. On the top or side of the host , the round switch is turned on. Turn on through the KV-1P Wire Control Switch 3. Press the swtich quickly to realize the strobe function 4. Two small circular buttons on the main unit to adjuest the laser brightness. Fit For: 20mm Picatinny Rail Tip: 1.There is NO Battery unit inside. 2.Due to the lighting effect, there may be color difference in the pictures taken. Q&A: Q: Why does the product not include batteries? A:Because batteries belong to the transportation of dangerous goods in international logistics. Q:Why hasn't logistics information been updated for a long time? A: Dear, if the logistics information has not been updated for a long time, you can check the logistics information on this website：https://www.17track.net/en/.Or contact us directly. Q: The logistics information shows that the package has been delivered, but I have not received it. What should I do? A: Dear,please contact us immediately and explain the reason, we will help you obtain the package. Q: What should I do if I have any confusion about the product or logistics? A: Dear,please contact us directly, and we have a specialist to answer your questions.Material: Metal This productis 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). (Not included) Effective range in the dark: red beam: 300 ± 100 m.; IR beam: 400 ± 100 m. 1. The triangular area on the host can switch between visible laser and IR 2. On the top or side of the host , the round switch is turned on. Turn on through the KV-1P Wire Control Switch 3. Press the swtich quickly to realize the strobe function 4. Two small circular buttons on the main unit to adjuest the laser brightness. Fit For: 20mm Picatinny Rail Tip: 1.There is NO Battery unit inside. 2.Due to the lighting effect, there may be color difference in the pictures taken. Q&A: Q: Why does the product not include batteries? A:Because batteries belong to the transportation of dangerous goods in international logistics. Q:Why hasn't logistics information been updated for a long time? A: Dear, if the logistics information has not been updated for a long time, you can check the logistics information on this website：https://www.17track.net/en/.Or contact us directly. Q: The logistics information shows that the package has been delivered, but I have not received it. What should I do? A: Dear,please contact us immediately and explain the reason, we will help you obtain the package. Q: What should I do if I have any confusion about the product or logistics? A: Dear,please contact us directly, and we have a specialist to answer your questions.