My local paintball store does not have an end that will hook to my 10oz shifter bottle, I talked to the guy and he said if I supply my own end for the bottle so he can hook it to his fill tank, he will gladly fill them. Doing this saves me an hour round trip vs a 5 minute round trip. What I am looking for is the female end that screws to our bottles. If anyone can point me In the right direction