Hello fellow airsofters. I need help. When I purchased my JG AK-47 2 years ago, the fire selector become loose. I did not know at that time that the screw cover comes off. I tightened the screw but the selector is WAY off. It is always semi-automatic and there is no safety or full auto. I tried messing with the selector internal and it seems the selector is out of line. If you know a way to fix this, please share.