Looking for an HW40 air pistol for my father who wants one for dispatching rats in traps and general plinking. Not fussed if 177 or 22.

I know I may be better on Airgun forum, but have been let down 2 or 3 times on lesser forums lately so hoping SD can come up trumps.

Anyone got one lying around in good condition that they do not use any more and would be willing to sell?