You need regular airsoft magazines. Low/real cap, mid cap or high cap, it doesn't matter. There's loads of them available from a bunch of retailers and they're pretty cheap.
Constructively, this isn't Facebook, and descriptions like "works" won't get you very far. List exactly what you have, or what you want, and how much you want to receive or to pay, including PayPal goods-and-services fees and postage.