My BODYGUARD 380 purchased in 2018 has the six didget # 050715 on the box label and the test fire date on the envelope as May 7, 2015. These agree.
My M&P Shield 9mm 01 purchased early Jan. 2020 has a six didget # 071119. There was no test fire round in the box or envelope. However I believe this is the date of manufacture July 11, 2019 because this pistol is the 01 model 9mm Shield it has the newer 02 model barrel in it which one can tell by the font style of 9MM stamped on top of the barrel. So while the body of the pistol is the old 01 model the newer 02 model barrel was used in assembly in 2019. That's the way I interpret it anyway.