Yes , they have low tolerances , not like a m16 where you sneeze at it and it can jam in the desert .
The ak 47 doesn't have a fancy scope , more a close range weapon really imo , so it doesn't surprise me when you didn't get any bullseyes .
It's just a really fun gun . - buddy has 17 different guns , the ak was my favorite . you can interchange parts no matter what country makes them and will fit no problem .