The Premium Ammunition Storage Components ASC 5-308-SS-BM-B are engineered for optimal performance and reliability. Crafted in the USA, these durable magazines guarantee flawless functionality in the field. ASC magazines are constructed from high-quality materials to withstand extreme conditions, making them the preferred choice of leading firearms manufacturers. Experience unmatched durability and craftsmanship. Heat Treated for Strength and Durability Chrome Silicon Spring for Enhanced Performance Made in the USA for Superior Quality Choose ASC for your ammunition storage needs and experience reliability like never before.