New Amiga Keycaps are compatible with following criteria

  1. Keyboard switches : Mitsumi Hybrid
  2. Amiga 500 / Amiga 2000 / Amiga 3000(T) / Amiga 600 / Amiga 1200 / Amiga 4000(T)

Compatibility Note

All Amiga keyboards are more than 30 years old. Not all Amiga keyboards were manufactured by the same factory. Throughout the existence of Commodore & Escom, while Mitsumi Hybrid keyboards were requested to be produced following the same design, each manufacturer introduced almost imperceptible variations. 
As such it is expected that in some occasions a keycaps might not sit correctly on its stems – popping up from its switch easily.