As long as it's polished up nice and bright , heat the area where the pin should be, but very slowly to a yellow to just turning brown.
The differences in the 2 metals (pin and the ejector itself) will usually turn slightly different shades and reveal the hidden pin (or what even assembly method).
You may loose the coil spring inside there that powers the ejector if you get it too hot, and that's easy to do with such a small part.
But a small spring is easy to replace if needed.
Keep the revealing temper color(s) below spring temper blue and the coil spring should be OK too.
