It wasn't the hop up, i tried it with no hop, full hop and half hop. What I think was happening, though i don't think i can explain it right is this:
There is a piece of plastic that cuts off the mag from the barrel. For the lack of a better word a bolt. But when i fired, the gun would cycle improperly and the "bolt" would be fully back and the top BB would just slip out.
I left it for a couple days and started firing it again. The problem no longer exists even with hop up set to nothing.
Just tempromental I geuss. Thanks everyone for your help
