You might be interested in past posts on this topic:

• How much German equipment was still in use after WW2?
  ^(29 Jul 2014 | 13 comments)
  ^(A [deleted] user gives a detailed rundown of the fate of various German weapons after the war.)

• The availability of surplus weapons immediately following Would War II.
  ^(16 Jan 2013 | 11 comments)
  ^(/u/vonadler gives a breakdown for all sides, with some notes on Germany.)

If you have followup questions, feel free to comment with them directed towards specific users using username mentions.