ProMag Industries SMI-A16 13-Round Steel Magazine combines durability and reliability for optimal firearm performance. Engineered in the USA, this magazine is backed by a lifetime guarantee, ensuring peace of mind with every shot. Designed with precision, each component undergoes rigorous quality checks to maintain optimal functionality. 13 - Round Capacity Steel Construction Heat-Treated Chrome Silicon Wire Spring Manufactured & Assembled in the U.S.A. Easy Loading Rugged Construction Elevate your shooting experience with the ProMag SMI-A16 - built for performance and reliability.