The prop was made for this cosplay: fav.me/d5egjgs
Yes it transforms!
I have worked three weeks on it and now itīs finally finished XDD
In 9th Sept. (yesterday XD) I came from the Connichi in Kassel (I was there the whole weekend) and it was very exciting^^ I wear my lightning 13-2 cosplay the first time (only for a half day, because I want have fun and involve at the convention program without any sliding parts... O___o)
I havenīt transform it into swordmode because IT IS TOO HEAVY!!! I canīt hold it for more than 2 seconds horizontally in the handle.
The weight of gunmode is acceptable, but not perfect for longer time than 2 hours...)
It is made out of plastic and about 1,40 m long in sword-mode.
It stays in form with bolts that you can screw in and unscrew.
Here you find a kind of tutorial: fav.me/d5nxwoz