If not then you can always try and borrow a mag or two from a friend next time you go to a game.
Honestly, I wouldn't mind lending one or two of my plastic midcaps to someone who at least has a gun but his mag was out of commision. AND it gets the hi-cap off the field so there's no "tactical maracas" to give away your (and your teams) position.
Either that or do what STALKER said, I know how money can be tight especially with school (I'm a student too) so I wouldn't really harp on about you must get some "real" mags now now now, it comes over time but don't go 2 years without buying some mid or low caps.
ಠ_ಠLess QQ more Pew Pew
READY TO >> RACE