D&H Tactical(R) magazine is designed for compatible AR-15-pattern firearms chambered in .300 Blackout. The detachable aluminum magazine provides a 30-round capacity and features a black finish with a red follower. It provides a replacement or additional magazine option for compatible AR-15 applications.Key Features Designed for compatible AR-15-pattern firearms Designed for .300 Blackout ammunition 30-round capacity Aluminum magazine construction Red follower Black finishD&H Tactical(R) manufactures firearm magazines and related components for a variety of rifle platforms. The company produces magazine products with an emphasis on durable construction functional compatibility and dependable feeding. D&H Tactical products are manufactured with attention to material quality fit and consistent operation.