[Turd]

So just when I thought I had it all solved and working another problem arises. Just installed a new tightbore barrel and some external parts. Prior to this I had a problem with bb's coming out of the barrel at an extremely low velocity. After switching the barrels and reassembling the hop up I tested it, after about 50-60 rounds that looked normal the last 2 went back to the low velocity then no bb's at all! It is not the mag because I can hear them feed up when I put it in. I don't THINK its the hop up but I now notice that my air nozzle is no longer moving. Any insight? thanks.