Springfield needs to put on box like Sig does with the date of manufacture, it still could have sat for awhile at the distributor, nobody knows, at least it’s fine now, that’s all that matters and they took care of it for you
when i got my CZ 75 B, new, back in about January/February of 2020, it was built in 2017...
it was stamped on the gun 17, on the slide, just in front of the ejection port.
at the time, i did not know that, so i started what i continue today, and that is hit the "contact us" link on any gun that i buy, and ask "what was the build date"
surprisingly (or not) CZ got back to me and informed me of the build date (at least the year).
anyway, when i bought it and looked at it at the LGS< it was as pristine as all hell....(no rust)
my "last CZ", i bought back in January of this year, an Omega Convertible 75B, which is discontinued, was built in December of 2022, at least that time, i had a month as well as the year.
so yeah true, some guns ARE new, but may be sitting in warehouses all over the place, when we buy them, maybe as much as 3 years later.
true too, i have "some" gun cases (i keep all of them) with build dates on them.