These tactile switches by Gopolar and manufactured by Gateron are a new improved mold based on the KS-9. They feature a two-stage 18mm spring and this tactile stem is prolonged for a faster bottom-out.
These are the V2s, they now feature a clear top housing and curved light diffuser!
Stem is made from POM; top housing Polycarbonate; and bottom housing PA66 Nylon