The Dlugov assault rifle (автомат Длугова) was a prototype assault rifle of Soviet origin. The weapon used a blowback operation and was chambered in the 7.62×39mm round. It was proposed as an alternative to the gas operated AK-47, but the Dlugov turned out ineffective and was rejected.
Monetchikov, Sergei (2005). История русского автомата [The History of Russian Assault Rifle] (in Russian). St. Petersburg: Military Historical Museum of Artillery, Engineers and Signal Corps. pp. 81–82. ISBN 5-98655-006-4.