Sounds like there is nothing
wrong with your gun, only
one of the mags isn't working
correctly...
Well, you have 3 working ones
to compare so you best take
them all apart and compare,
see if you broke something on
the one malfunctioning mag.
Also, are you testing these
mags with or without bbs
loaded?
PS: goes to show, if it aint
broke don't take it apart!
