batteries panasonic you don't find these very often because they come from America and are not made here in England.they are made of zinc
lots of springs for the mechanism to work.they are metal and vary in different sizes
wires for the electrical mechanism in it it is not that complicated it has 4 electrical components an wires these here.it is made of copper.www.youtube.comhow it's made copper wire, use copper wire drawing machine http://www.jspoly.com ; E-mail: email@example.com
This is the trigger it would have had lots of springs and electrical wires to support it it is made of polystyrene.
The Nerf gun has not got anything to keep it together except for these screws.they are made of alimonium
This Nerf gun is run on electricity to keep it going if you took the wires out it would not work. It is weird though anybody can hold it comfortably.