Try contacting beretta directly and let them know what happened. Beretta might push stoeger to actually replace or fix your issue.

And you still do not get it.
Its not the post itself that is not aligned, it is the post/sight ears where it is mounted to the barrel. The hole is drilled off centre.
Look at you post/sight ear assembly in the picture, it does not sit centre to the barrel and barrel sight mount.
It is off centre as well, so thank you for confirming another gun that has the sight installed off centre.




























