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-D2 Tactical switch (in the kit) can be installed on picatinny rails and 1913 rails. 

Specifications:

• Brand Name: Unbranded
• Output Power: <1mW
• Origin: Mainland China
• Model Number: Perst 4 Green Laser And IR Laser
• Type: Laser Sight
• Material: 6061 Aluminum Alloy
• Color: Black/Tan
• Battery: 1 x CR123A (Not Included)

Perst-4 contains 2 laser functions:

• Green Laser light source: wavelength - 635 nm
• IR laser source: wavelength - 850 nm

Power supply: CR123A (No Included)

Effective range in the dark:

• Green beam: 300 ± 100 m.;
• IR beam: 400 ± 100 m.

Overall dimensions: (37х60х91) ± 3 mm.

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. Two small circular buttons on the main unit to adjust the laser brightness .

Fit For: 20mm Picatinny Rail