Mission First Tactical(R) magazine is designed for compatible AR-15-pattern firearms chambered in 5.56 NATO and .223 Remington. The detachable polymer magazine provides a 10-round capacity and features a black finish. It provides a replacement or additional magazine option for compatible AR-platform applications.Key Features Designed for compatible AR-15-pattern firearms Compatible with 5.56 NATO and .223 Remington ammunition 10-round capacity Polymer magazine construction Detachable magazine design Black finishMission First Tactical(R) manufactures firearm components and accessories for sporting recreational and professional applications. The company develops products with an emphasis on functional design durable materials and platform compatibility. Mission First Tactical products are manufactured with attention to fit practical performance and dependable operation.