We haven’t found that the Freeplay Zero needs a heatsink (when the cartridge opening is left unobstructed), but if you want one for your build, here it is.
These work perfectly fine on the Freeplay CM3, but those kits include the heatsink. Only buy this for your Freeplay CM3 if you need an extra for some reason.
Dimensions: 14mm x 14mm x 6mm (including the adhesive tape)
141 in stock