This is 1:4 scale B1 battle droid from the Star Wars prequels. The parts are designed to allow the figure to be posed with glued joints. The pose I picked was based a still from the battle of Geonosis, using the legs of the droid on the right and the arms of the droid on the left. The result unfortunately makes it look like it's performing Shakespeare or perhaps proposing marriage. A weapon might help, but the assembled figure is quite flimsy. You can see why they fall to pieces when confronted with an annoyed Jedi.
Added backpack geometry and new gallery images of a free-standing brother in arms w/backpack. Fixed join between neck and torso.
This is an original creation based on designs from the movies. I retain no rights to the design which presumably belongs to LucasFilm and Disney.