This is the Saiga MK. As am seriously considering to buy one so i went to a gun shop to take a closer look. I was really shocked by how light the thing is! I have handled AKs before and this feels nothing like them. Even lighter than an AR15 in same legth. The receiver seemed alluminum... is that possible? Couldn't get much info from the clerk regarding materials used. Would like to know more from other Saiga owners. Please note, we get the guns exactly as they come out of the Izhmash factory, no 922 regulation. Do they change the barrels to import them in US? I'd like to know more about the barrel too. Thank you!