This DarkSaber was based on the Star Wars Rebels TV show with a more realistic look. This is designed to be fitted with a soundboard, battery and neopixels. It is not meant for dueling, just to show off. This is just the end cap portion and you can get the rest of the parts from this list: https://www.shapeways.com/designer/gucabe/lists/darksaber
To assemble the saber you will need 5 flat head 4-40 x 1/4" screws. You will have to tap the holes on the plastic. (be carefull not to strip it)
Tip: Print it in white and save a few bucks. Printing in color comes with a premium.