Retrieving Records in Powershell Returns Odd Result "_Property"

I am attempting to pull records from a custom entity I setup via the get-crmrecords command.  I have listed all the fields I would like to retrieve and getting a very odd result.

For some fields I have listed I get the actual value of that field, in other cases it does not return the field requested instead I get a field with a "_Property".

Here is an example

Field Requested "cr40c_itemnumber", field returned "cr40c_itemnumber_Property"

Expected Value:

 "1234"

Returned Value:

[cr40c_itemnumber, 1234]