Update, I had reached out to Pedersoli, but it took a bit of email exchanges, and the picture of what I had absolutely lost, but happily they had one and it is in the mail (probably take 4 weeks from Italy to here, wife did offer to go get it herself, first time she took an interest in this stuff). Interestingly, it is not a part that is ever offered, I lucked into them having a sight that was not up to specs and this just sitting there. Either way, Pedersoli was great in the customer service.
So, even though I have one, this offer still stands, as having a spare does not seem like a bad idea.