[narwan]

There seem to be no aamg units in the polish OB. These OB's for the polish army show many aamg units available in september 1939:

http://www.orbat.com/site/ww2/drleo/...1939/_army.htm

Including both 'regular' aamg's (presumably .30 calibre) and 13.2mm calibre (at least in the coastal commands):
http://www.orbat.com/site/ww2/drleo/...t-def_sea.html

I'll see if I can find some more on this.

Narwan