"I purchased two of these 450 hi-cap mags. The first one has a problem feeding ( I used the G&G/Goldenball brand ammo for all of my mags), And since I tend to use them as ammo holders for the mag the gun came with, which seems to feed perfectly.
I'm guessing it's something internal that I'll have to fix later.
They kinda work, I guess.
I use a G&G combat machine, thinking all the brand name products would work together quite well, right?"