German military(Bundeswehr) has a museum The Firearm Blog got to visit
http://www.thefirearmblog.com/blog/2016/11/15/trip-bundeswehrs-fantastic-defense-technology-museum-koblenz-part-1-selfloading-rifles-guest-post/
http://www.thefirearmblog.com/blog/2016/11/15/trip-bundeswehrs-fantastic-defense-technology-museum-koblenz-part-2-selfloading-rifles-contd-guest-post/
http://www.thefirearmblog.com/blog/2016/11/18/trip-bundeswehrs-fantastic-defense-technology-museum-koblenz-part-3-submachine-guns-guest-post/
http://www.thefirearmblog.com/blog/2016/11/21/trip-bundeswehrs-fantastic-defense-technology-museum-koblenz-part-4-submachine-guns-contd-guest-post/
http://www.thefirearmblog.com/blog/2016/11/21/trip-bundeswehrs-fantastic-defense-technology-museum-koblenz-part-5-submachine-guns-contd-2-guest-post/
http://www.thefirearmblog.com/blog/2016/11/22/trip-bundeswehrs-fantastic-defense-technology-museum-koblenz-part-6-assault-rifles-guest-post/
http://www.thefirearmblog.com/blog/2016/11/23/trip-bundeswehrs-fantastic-defense-technology-museum-koblenz-part-7-pistols-guest-post/
http://www.thefirearmblog.com/blog/2016/11/25/trip-bundeswehrs-fantastic-defense-technology-museum-koblenz-part-8-weird-wonderful-guest-post/
From: The Firearm Blog