Called Wultron™, as per the illustrated logo, they look like a "W" which is formed by aligning the front sight with the rear sight, and this allows to see two triangles in the spaces formed by the front sight which is placed centrally in the rear sight tank. When the front sight is in an incorrect position, one of the two lateral triangles will immediately become small. This will allow the operator to instantly notice incorrect collimation and quickly correct it.
 
Their height allows them to interact with different types of dots.
 
Characteristics:
Anodised Aluminium
Co-Witness model (for use with dot)
Glock compatible
 
In the box:
Front sight
Rear sight