so... i was given a .32 acp with a busted firing pin.

[mozeppa]

i found a piece of 440 stainless and made one.

my question is ....is this going to stand the test of time and will it hold up under the very occasional use?

[JWFilips]

I would say yes unless you are shooting 20,000 cartridges

[pietro]

.

While you're tooled up, just make a 2nd FP against any future issues.

.

[Texas by God]

Some designs use the firing pin as an ejector as well( Davis)- so don’t dry fire them. You didn’t say what make you have.

[bob208]

I have made many trapdoor firing pins out of stainless . never had a come back.

[roverboy]

It might hold up for awhile but, may have to be heat treated.