HPA build help f2 v3 Not feeding

[Districktairsoft]

Recently build a f2 Ak , gun shoots nozzle moves but it’s not feeding , I’ve tried 2 different mags and I’ve messed with loads of different fcu settings still no luck - could it be that I need a different sized nozzle for the ak im using ? It’s inside a CYMA gear box , using the nozzle that came with the f2 , in a what seems to be JG body , 

Gun has new barrel , new bucking and nub and they are installed correctly 

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[Krisz]

Yeah more than likely. Never had an F2 but I know that wolverine and other brands sell different nozzles for different platforms. Sadly if it's a few mm off it's enough to not feed.

If you have a chance you should try your mags in a different AK just in case. Unless they're compatible 100%.