imo it's a repro, I documented an identical one here....
http://www.imperialgunneryforum.com/t6043-fake-pop-up-saber-variant-or-repro?highlight=pop+up+saber
There unlike other pop-up saber repros as they are molded from green plastic. They don't match other known legit examples, shorter, different sculpt, poor definition, unique material etc etc.....