Been thinking of trading my Yugo M70 underfolder in towards something nicer. Will probably be awhile before I can fit it into my budget, but figure to start doing the research now. Looking for a Kalashnikov pattern rifle in 7.62x39. Would prefer a folding stock and ability to mount a red dot (even if I have to buy after market i.e. Ultimak). Would prefer to spend less than $1000 but will spend more if worth it. Also, what is the difference between all the different Arsenal AKs? Seems they have Bulgarian milled and stamped receivers, but I thought they converted Saigas (which I thought were Russian produced)?