This thing is crap. Made with shitty plastic, like everybody says. Mine completely unwinds itself three quarters of the time when you slam it in the gun and even when it doesn't I get about ten shots before it jams or otherwise fucks up. I took it apart and put it back together and the unwinding dropped to about half, but still happens way too often to be any good. I'm now using it as a 300 round bb carrier.
I am using biodegradables, but that shouldn't matter, should it? Once when I used others it worked but another time it didn't, so I think the whole mag just sucks.
Carries 300 rounds
Fine when it works
p90 comes with instructions on how to use it (instead of instructions for the mags that come with the gun)
bb's don't always feed
unwinds in gun
Feeder spring is very weak
Rating: [2 of 5 Stars!]