Replacement  rails for switch joy-cons. Left + Right side. These are original and removed from Original Nintendo Joy-Cons, includes the lock part. You do need to transfer other parts from your old rail to this one in order to make this complete. 

These are used working  original rails (may show sign of use including scratches etc) 

If interested we do sell complete rails also link: 

https://www.ebay.com/itm/Complete-Nintendo-Switch-Joy-Con-Rails-Left-Right-Set-W-Flex-SL-SR-Buttons/264757135184?hash=item3da4c14750:g:yUoAAOSwjDpe3fsT:sc:USPSFirstClass!85281!US!-1


Please note this is for the joy con (Not for the Switch Tablet Device)