does anyone have anay suggestions on why a gun wouldnt feed on full auto? First of all no mid caps feed in the gun properly (KWA for ya!) Ive tried all the recommended brands and a half dozen others.
All high caps feed on it but on full auto it will never feed, itll shoot the first round and forget about the rest. on semi it feeds every shot. & no it doesnt have a high ROF. it shoots slower than a stock gun on a 7.4V lipo because its got triple torque gears.

check the hopup, the rubber might be off, or somehow the cylender head or nozzle are damaged, having the same issue right now with one of my M4s has a bent cylender head.

Check Rubber, then try a mag only with 10 rounds or so in it.. I think the tappet is a cheap POS and is bending when being used so IE replace it and or the spring .. maybe even the hook for the spring is bent..

Try running the gun with no rubber in it.. Odd how KWA is having this issue..

Try a used Hopup unit