Repairing a firing pin - Marlin 39A rimfire

[Potashminer]

I have a 1955 Marlin 39A lever action .22 that the firing pin has broken. From on-line reading, it is not the first one to do that, nor will it be the last! Not having much luck sourcing a replacement in Canada - a Canadian vendor has them listed on their website, but after ordering one, I received an email that they are out of stock.

So, in the spirit of "old-school" gunsmithing, what are my choices? See picture below. Could this be brass brazed back together? Welded? If I were to attempt to file out a replacement from flat material, what material would be used? Is it to be hardened? Or is part of it hardened?

 

[sean69]

it's just a pin and does not bear any pressure, so you could weld it or braze it and should be fine. If you were to make one - that looks pretty easy, O2 tool steel hardened and tempered. You could also probably get by just fine with a harder stainless too.

 

[45stomp]

I'd make a replacement from flat stock, O-1, 1084, 1095, 5160, W-2.....basically any high carbon steel will work fine. Harden and temper after shaping.
Stomp

 

[billdick]

Brazing won't work but welding will. If you cut out an new one round the inside corners because a sharp/square corner will fracture like the one you have now.

 

[trevj]

I'd make a replacement from flat stock, O-1, 1084, 1095, 5160, W-2.....basically any high carbon steel will work fine. Harden and temper after shaping.
Stomp

Yep.

Any Machine Tool Supply house can supply you with known alloy steel in thicknesses and widths of your liking.

A Sharpie Marker of Magic Marker instead of layout blue.

A hacksaw. A couple files. Less time than you would really figure, once you get started.