D&H Tactical(R) AR-15 Magazine is a 4-round magazine designed for compatible AR-15 rifles chambered in .450 Bushmaster. The magazine features durable steel construction with a black finish. It provides a purpose-built magazine configuration for compatible .450 Bushmaster rifle applications.Key Features 4-round magazine capacity Designed for AR-15 platform rifles Compatible with .450 Bushmaster Steel construction Black finish Made in the USAD&H Tactical(R) manufactures firearm magazines and related components with an emphasis on durable materials and dependable operation. The company produces magazines for a variety of firearm platforms and calibers. D&H Tactical products are manufactured with attention to fit functional design and consistent performance.