With such a low quality gun, there is no need to get upgrades really. Any cheap barrel and low end electric loader will be fine.
No, you need to buy another 12 inch barrel with spyder threads on the back.
A PMI razzor barrel (spyder thread) will fit your barrel needs. You know it will fit if it is "spyder" threaded.
Any barrel that is Spyder threaded.
yes, both spyder threaded
As long as it has the correct barrel threads it will. JT markers are spyder threaded, just make sure the barrel has spyder threads and yes it will work.
In some cases yes, but they are not barrels made by Spyder. For instance Dye makes a barrel for spyder markers. So better be safe than sorry, look for a barrel that tells you it is designed for JT markers.
Sadly no. On the end of the barrel are the threads, and as one could see the threads on the end of a Tippmann barrel are thick. Spyder threads are much thinner.
A custom products Barrel and regulator.
If you have the loader to keep up with it, 15 balls per second.