Well the Dragunov already makes an appearance at the Underrail.
http://www.underrail.com/wiki/index.php?title=DragunovIt is not the only real life based unique weapon in the game since the H&K MP5 is also present.
I guess an AK wouldn't look too much out of place but.
I would prefer if we have just a couple of real life based weapons, too many might ruin the setting.
Underrail feels so far into the future and too many remainders from the past might ruin that feeling.
But if Styg decides to introduce an AK and if it is the AK 47 i hope it has a lousy precision.