ProMag magazines are Made in U.S.A and backed by a lifetime guarantee against manufacturers defects. Magazine springs are precision wound using heat-treated chrome silicon wire and each and every step of the assembly process is checked and double checked in order to maintain the same consistent level of quality. Product Features Heat treated chrome silicon wire spring Manufactured and assembled in the USA Easy loading Rugged construction Product Specifications Manufacturer: ProMag Color: Black Fit: Glock 17/19/26 Capacity: 32 Caliber: 9mm