Differences comes from some measuring actuation, and some measuring bottom out forces. There could possibly be a super clear variant I suppose though I have never seen a part number to indicate so, but it wouldn't be anything common.
There is a 105cN clicky grey too, known as grey36 or MX1AB1N*, but it is quite rare.
This one linear is grey37 or MX1A21N* which by the way are these with or without pin for PCB/plate mount?