The AO-35 is a prototype assault rifle of Soviet origin.Small Arms Illustrated, 2010.На пути к Абакану accessed 27 June 2017. The weapon is an AK-47 derivative using a laminated wood stock to decrease its weight.
A 5.45×39mm version existed; it entered the 1968 trials for the new 5.45×39mm assault rifle, but it was rejected; ultimately the AK-74 was adopted for this role some years later.
References
See also List of assault rifles