JTR8541,
I was just curious if the person you purchased it from represented it as a genuine preban SA-85M and gouged you about $1300, as you paid $410 you did ok.
FEG receivers with the KBI import markings are definately post ban, Kassnar is preban. The stocks are probably Bulgarian and they are some type of hardwood and definately not pine.
This rifle has a different barrel or gas block and front sight so it may not have been pressed in properly aligned. A good way to check if the front and rear sights are somewhat aligned is to turn the rifle upside down and sit the top of the blade of the rear sight on a flat surface. Then touch the front sight ears to the same surface. If both ears of the front sight are not touching the same flat surface as the rear sight is, then the front sight is canted.
The other issue is as AJjer_Bullets mentions is it's legality. This rifle should have US made parts in it. I believe the way it sits it should probably have a US made hammer, trigger, sear, gas piston, pistol grip, magazine follower and mag base plate. This needs to be verified.