The ProMag Industries SAI-A5 24-Round Polymer Magazine is engineered for durability and reliability, making it an essential addition to your firearm accessories. Manufactured in the USA, each magazine is subjected to rigorous quality checks, ensuring superior performance in every round. The precision wound springs are made from heat-treated chrome silicon wire, contributing to long-lasting effectiveness. 24 - Round Capacity Precise Manufacturing Long Term Reliability Durable Polymer Construction Choose the ProMag SAI-A5 magazine for unmatched quality and trust in your shooting experience.