We reached out to the customer immediately after receiving the review. Here is the last message I (Carl) sent to him: 'So the spring of this button comes out. You can unscrew this button from the hilt. It should be easy to put the spring back to the correct position. Try to put it back first. Let me know if it works or not. If not, I’ll ship you a replacement. ' After that, I did not hear back from the customer anymore.
To the customer: By saying that, if you still has any issue with the saber. You are always welcome to let us know!