Other questions, were you using light primer USA made ammo?
A slam fire can be dangerous as it is firing on the momentum of the closing (but sometimes
not fully) bolt. This rarely happens in Kalashnikov weapons however, and generally,
I would agree with the other guys on the FGC being the culprit... should
be a breeze to find out just by popping the top cover and cycling the trigger mech and carrier etc... ( on an empty gun!) THat is another nice thing about AK's being able to watch the works in play with the top cover off.. but with those crappy USA parts, anything is possible.... it is crazy to think how gay-assed laws force manufactures/importers to replace perfectly good, military approved (READ: SAFE) parts with substandard ones, which themselves have no laws regulating any kind of quality/safety standard.... how typical.
-C