Is there a way to ID who makes a given LPK once it is out of the package?

For instance; is it possible for someone to sell me a DPMS LPK sold as a daniel defense LPK or vice versa?

I know certain companies have different trigger guards but in the half dozen lowers that i have built i have used four different LPK's and once assembled i could not tell you which lpk i installed on which lower.

No........

LMT has their name on a few of their parts but the rest look like any other.
Which leads me to believe that they make their own parts.

^^^ This... short, sweet and to the point.