[Agent M]

Hey everyone!

I have this brand new M4A1 from KingArms with a little problem...

When fired on full auto the first bb that comes out is at 400fps, the next tree bbs just roll out of the barrel.

Checked the gearbox, the airseal is allright
Inner barrel and hop up seems fine to me

Tried different brands of magazines like Magpul Pmags, G&P, G&G, MAG, SRC, but it doesnt change a thing i still have the issue

Could it be the bucking?

So if there is anyone who knows whats the problem lemme know!