Troy(R) BattleMag magazines are designed for compatible AR-15-pattern firearms. Each detachable magazine provides a 30-round capacity and features polymer construction with a black finish. This package includes three magazines for compatible AR-15 applications.Key Features Designed for compatible AR-15-pattern firearms 30-round capacity per magazine Polymer magazine construction Detachable magazine design Black finish Package includes three magazinesTroy(R) manufactures firearm components and accessories for sporting recreational and professional applications. The company develops purpose-built products with an emphasis on durable materials functional design and firearm compatibility. Troy products are manufactured with attention to fit practical performance and dependable operation.