Is there any good places to buy replacement parts (OEM or otherwise) for controller?

My lunar white controller lost the right RB button last night. The connector to the right of the home button snapped and the casing fell of while playing. Is there any place to buy OEM parts or third party replacement parts? I would prefer OEM but if
it is not an option I would go the third party route. Thanks for your help.

:)

 

Controllers Right analog stick stops working randomly. Stops and Starts.

You buy OEM then they'll do a rapid fire modification for you without having to worry about replacement parts or variation in case sizes.

 

Controllers Right analog stick stops working randomly. Stops and Starts.

We suggest you buy only OEM controllers as the 3rd party controllers tend to be rather flakey and don't feel right. We have lots of cool controller parts available at Extreme-Mods.com and they are very easy to customize. The parts are built to OEM specs
and fit just like the original parts, so they will always feel identical to the OEM controller and not feel cheap or flakey.

 

If you're controller is less than 30 days old you can take it back to the retailer. If it's older than that but still within the warranty you can order a replacement using the online service center. devicesupport.microsoft.com

Info found here ->
support.xbox.com/.../wireless-controller-functions-improperly

 

I'm sure eBay has 3rd party parts, possibly Amazon too. If you want OEM, your best bet is probably to find one on eBay being sold "for parts or repair" and use it for parts.