A new one is like $10, doesn't hurt to have items like firing pins, firing pin retaining pins, gas rings, extractors etc on hand
The only one available for this gun is $40, as posted above. Reply from DPMS this morning:
"It does not look as if it needs immediate replacement, but we always recommend having a field repair kit for the rifles at all times which includes the firing pin. Thank you".
I'll clean the snot out of it and post back. Can y'all tell in the picks that the end has been melted and is just a blob of what it used to be? It's pitted and deformed but I don't know if y'all can tell that from the pics. I'll clean it tomorrow and try to get a more detailed pic. Thanks!