
Metaphysician |
AFAIK, there is no rule saying that a drone cannot make an unarmed attack, the same way a PC can. Sure, it'd be 1d3 damage base, nonlethal, but still.
Which is to say, technically speaking, a drone would not even need to have one melee weapon arm to grapple. It just would need a form not categorically incapable of grabbing something, like "entirely lacking in any form of limb".