Repairing Metal fight launchers

Does anyone know how to repair broken light metal fight launchers? They are nearly a decade old and I can't find legit ones on the internet any more.
How are they broken?
Yeah, I tried to repair one and ended up with a pile of broken parts.
(Jun. 16, 2018  6:34 AM)Flame-Byxis Wrote: How are they broken?

When launched it makes a grinding sound and leaves the bey at a spin that is worse than a hand spin. I do not have a screwdriver of the right size yet but I have ordered one to open it up.