Features: * Dual-ended 16-shot BB and pellet magazine * Made for the Beretta Px4 Storm BB and Pellet Pistol * Note: using pointed pellets, such as the RWS Superpoint, may cause a jam. It is best to use non-pointed pellets. * A traditional wadcutter pellet, like the RWS Hobby Pellet, is your best choice * Holds 8 rounds at both ends for a total of 16 rounds per magazine * Accommodates BBs or non-pointed pellets * Innovative design * Caliber: 0.177 What"s In The Box: * Umarex USA 2253515 Beretta Magazine Px4 .177