[hykao]

Well, are you sure? I found many sources on web like http://www.russianlegacy.com/catalog...oducts_id=3561
As you can see on the picture in cyrillik lettern there stands Nagan not Nagant!
Also the console command name is weapon.Nagan and weapon.NaganSilencer.

Yes, I'm totally sure! In the Russian, they respell the foreign non-Russian non-cyrillic lettered words with cyrillic letters. This word "Nagant" have to pronunce -> "Nagan" (in several language), like his compatriot name: "Poirot" (have to pronunce -> "Poaro")
(Both men (would) were Belgian )
...so in German that word - Nagant - have to write: "Nagant" ...