AK47, as known in US, is AKM in Russia. Links above were good.
Short, short intro to AKs.
Galil is Israeli variant of AK, basee on Finnish Valmet, which is an AK variant. It is milled, not Stamped, receiver. Heavier, but lasts longer (either one would not be wornn out by semiauto fire). Galil ACE is the latest variation of it. It moved charging handle to the left side and put a full size rail on the receiver.
SA85 is Hungarian name for AKM.
Beryl, Tantal, WBP are more modern Polish variants of AKM
PS depending where you live, I am sure one of the Klubbers could let you fondle and look or shoot an AK.
Vepr is a Russian made civilian version of a LMG, known as RPK. Until I laid hands on a Galil, it was the most accurate AK-type weapon I shot (in Soviet Army soldiers were trained to shoot RPK74 in semiauto, sorta DMR role, not just as LMG). It has a stamped recever 50% thicker than AKM, and a barrel thicker than AKM.
WASR, SAR1, SAR2, SAR1, WASR10/63, Draco are Romanian made AKs for exports.
Saiga and Vepr are Rissian AKs.
Bulgarian Arsenal is another AK manufacturer available in US now. They have their own models, dozens of them, so you have learn them separatly or ask questions.
MAADI is Egyptian made AK, no longer imported. Original factory was set up by USSR, before Egypt pivoted to the West.
Feel free to PM with any questions u might have. I am lost in AR world and I am blessed to have a friend I can ask basic (to him) questions about ARs
Many Soviet/ Russian SpecOps units went back to 7.62x39, after the first war in Chechnya. It is more sutable for urban warfare, it will punch thru cinder block and still wound or kill a BG on the other side of the wall. 5.45x39 cannot do that.