Glock G31 Black 357 Sig .355mm Handgun Magazine - 15 Rounds - Glock magazines have a stiff metal tube encased in the proven Glock high-tech polymer. This resists deformation, even when dropped from great height or exposed to extreme environment conditions. - At Sportsman's Warehouse, we live for the thrill of the great outdoors. Whether you're hunting, fishing, camping, backpacking, or shooting, having the right gear is key to making every moment unforgettable. That's why we bring you only the highest quality, trusted brands-because your outdoor experiences deserve the best. From expert advice to quality gear and community events, Sportsman's Warehouse is more than a store-we're your partner on every journey. Come explore with us and experience the difference passion makes.