I loathe the idea of Threepio using a firearm. AOTC flashbacks.
Where’s Rose and Leia?
Maybe it’s a situation where Threepio exceeds his programming and desperately acts to save lives? Kind of like that TNG episode where Data was pushed too far. Or maybe he’s impersonating a droid bounty hunter as a ruse? If Leia and Chewie can cosplay as one… 😉