Stout Conical co2 pressure

[instinct2]

Okay how do I get a 1/2 Barb that's on my stout conical to add co2 into it to keg? My gas lines are 5/16 ID. I can't find a barb that goes from 5/16 to 1/2 or using my blichmann beergun hose accessory kit to go from 1/4 flare nut to 1/2 Barb..... Any thoughts or how are others doing this to transfer their beer out of their conicals?

 

[gotraut]

I use a 3/8 to 1/2 barb then to male cam lock. My conical fermenter lid has 3" tc fitting. So I go 3" tc 90 degree 1/2 barb to male cam lock. When i want to pressure transfer, i just connect co2 to fermenter with a female to female cam lock hose. Same hose i brew with. Works great!