Chainsaw Arms
The Tech Hunters and Cannibals Hunters were comparing notes one day?
Waystations and relevant tech hunter stations sell the limbs and blueprints (Mongrel? Worlds?)
Have fun! Please.
Obviously, Bruce Campbell-ing your hand had some odd effects on armours that include hands or gloves.
Months, months ago, Reddit user u/xatcat2212 mentioned the chainsaw on the cannibal tables. This was my solution
Beep!