Trigger/fire select switch

[old_and_slow]

Had a G&P M4 for about 6 months now.

First time out it wouldn't stop firing when I released the trigger. Even when i put the fire select switch to safe it kept on firing. Pulled the battery the reconnected it and it has worked fine up until today.

Today, with semi auto selected I might get semi, I might get full auto or it might pull the piston back, jam and go clunk clunk every time i pull the trigger. Fire select switch might, if it feels like it, go into full auto. Then again it might not. If it does, it will fire full auto. If I now put it into semi it will continue to fire full auto.

So, me thinks the fire select switch is bu**er'd.