Originally Posted by dblgnfix
A firing pin shouldn't be difficult to make. there are plenty of Smiths including myself that could make you a firing pin here in America

It's for a Greener Martini Henry trap shotgun. Do a google search, looks to be a lot more effort than a conventional firing pin.

The gun has no real historical or sentimental value so the gunsmith is going to drill out the existing firing pin and put in hardened replacement pin.

I have become addicted to English hammered shotguns to the detriment of my wallet.