Alright, so I was looking through the book when I had this odd idea. What is the rule for using Pull the Pin feat with a Solarian Gravity Surge to activate a grenade from 30 feet away? According to the book Pull the Pin requires you to have made a successful disarm combat maneuver. The Solarian Gravity Surge allows you to make a disarm or trip combat Maneuver from a range of 30 ft so it seems so far that RAW yes you can.
If you can what happens if you're attuned as according to Gravity Surge if you are attuned when you perform the disarm combat maneuver with the Gravity Surge ability the item flies to your hand if you have a hand free. Would the grenade fly to your hand? Would the "pin"? Would nothing move towards you because you're not actually disarming them? Can you choose not to have the item fly towards you?