ProMag GLKA21 20rd 9mm Fits Glock 17/19/26 Black Steel

ProMag magazines are made in the USA and backed by a lifetime guarantee against manufacturer's 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.<br><br><b>Features</b> :<br><ul><li>20-Round Magazine</li><li>For Glock 17/19/26 9MM Pistols</li><li>Magazine Body Constructed of a Proprietary Dupont Zytel Based Polymer</li><li>Magazine Body Has Full Length Steel Internal Insert Stamped and Welded Like The Factory Magazine</li><li>Injection Molded Magazine Follower</li><li>Spring is Made From Heat Treated Chrome Silicon Wire</li><li>Made in the U.S.A.</li></ul>