How are you loading your WE GBBR mags with BBs?
Do you have to use the tube feeder that comes with their guns or can you use certain speedloaders? I see you can take off the square feeder lip off their tube loader but it doesn't fit the speed loader I have. So far I've been speedloading the tube feeder, then using that to fill the mag. Doesn't seem that efficient.
Curious what others are doing.