D&H Tactical(R) magazine is designed for compatible AR-15 platform rifles chambered in .300 Blackout. The detachable magazine provides a 10-round capacity and features aluminum construction with a black finish. This configuration includes a red follower for easy identification.Key Features Designed for compatible AR-15 platform rifles Designed for .300 Blackout ammunition 10-round capacity Aluminum magazine construction Red follower for visual identification 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.