Where this little part came out from?
I had to replace the analog stick caps and after putting the controller together again it works perfectly, however a little plastic (rubber) part was left out as I couldn't find its place, and none of the guides show where it belongs. I would like to put it back to its place whether it has any purpose or not. This is it: http://pbrd.co/1rUppwn
Is this a good question?