Kalashnikov-style Spear Fight Technique is the most ancient of firearm martial studies.
"Kalashnikov" refers to Mikhail Timofeyevich Kalashnikov. This person was a firearm designer from Red Russia, and his most famous work is the renowned AK series.
"Lightweight" and "rugged" are adjectives tailored for the AK series. The structure of these firearms is very simple, and their performance is incredibly stable, requiring very low maintenance.
After officially being put into service, the AK series quickly armed a large number of former Red Alliance troops. And due to the political situation of the last century, this kind of firearm also flowed into many countries as some sort of "support".