About this item
Quick switch: flip-type backup sight, just press the button to fold down, you can quickly switch the main sight 
Adjustable: the height of the front sight can be adjusted by the A2 front sight tool (sold separately), and the wind resistance of the rear sight can be adjusted by the knob 
Double Aperture: The rear sight can switch the aperture, and the precision aperture or CQB aperture can be selected according to the target distance 
Quality: Aluminum alloy thin iron sight black matte anodized treatment.6-Month Warranty for Quality and Service Gurantee 
Installation method: suitable for Picatinny and Weaver guide rail (with hexagon wrench)