EC-4-8 has worked for five different bounty hunters, hauling weapons and gear, since he was originally activated in 52 BBY5. He’s luckier than most droids, his first master equipped him with a secured back up memory, so that even if a new master wipes him, he can run reupload his full memory. All those years of combat experience and observation … well that’s why he’s outlasted five masters. Never underestimate a good battle caddie.

The head is a SW MK4 Sentry Droid. The torso is a SW Pit Droid. The arms are from a SW Battle Droid. The lower body/treads are a combiners piece that came with the SW Force Awakens Finn figure. The back pack is from a SW Rey figure and the rifle is from a GI Joe