The
AK-107 is a
Russian 5.45×39mm assault rifle developed from the
AK-100-series. It features a "balanced" operating system, similar to that used in the
AEK-971. In this case, the designation AK does not indicate
Avtomat Kalashnikova but
Alexandrov/Kalashnikov. The revised designation indicates the incorporation of a new gas system, designed by Youriy Alexandrov, for
Kalashnikov-pattern rifles.