Does anyone know how figure out Kel-tec dates of manufacture?

[Ron3]

Or have a link to the table applicable to RDB rifles?

[NQNPIII]

Or have a link to the table applicable to RDB rifles?

Maybe go to the Keltek forum and ask around?
https://www.thektog.org/

[Ron3]

I saw a table of sorts posted over there but I couldn't make heads or tails of it. I don't have an account there.

I've got someone interested in buying my rifle anyway. Haven't even fired it. But after field stripping and reading about it appears to me to be a light-duty rifle. I'm not very interested in light-duty weapons.