Shop › MAG FN FIVE-SEVEN MRD 5.7X28MM 20RD MAG FN FIVE-SEVEN MRD 5.7X28MM 20RD $44.99 FN America Magazine, 5.7x28mm, 20 Rounds, Fits FiveseveN MRD, Polymer, Black 20-100682 Quantity: Add To Cart Added! FN America Magazine, 5.7x28mm, 20 Rounds, Fits FiveseveN MRD, Polymer, Black 20-100682