WW II German Manuals in English
 

Translated German Manuals are available for the MG42, MG34, MG08, MG08/15, MG13, MG15, RPD, PK Series, RPK, FG42, ZB26/30, G3, MP18/I, MP28/II, MP34, MP38/40, MP44, StG58, MKb42, AK47, AK74, 98k, PPK, Flare Pistol, Luger,
and P38. There are now 9 repair manuals in English.

http://www.germanmanuals.com/manuals.html