They do bumper assemblies available in parts for above controller. With some time a repair would be possible. Issue is I dont have a xbox anymore otherwise I'd walk you through it.
Best advice is keep your phone with you and tale pictures everytime you pull out a different part just ao you can put everything back together wothout difficulty.
https://youtu.be/Vx1xAhaYdKA
for a decent teardown.
Here's link for part.
[product|IF294-043]
[product|IF145-348-2]
Includes the security bit for the controller and a opener tool.
Just want to make sure you have everything you need to be