Elevate your shooting experience with the ProMag Industries GLK-A22 20-Round Magazine for Glock 48/43X. Designed for reliability, this magazine is a must-have for firearm enthusiasts. Engineered with precision, ProMag magazines feature high-quality materials and a rigorous assembly process, ensuring peak performance in every round. 20-Round Magazine For Glock 48 / 43X 9MM Magazine Body Constructed of a Proprietary Dupont Zytel Based Polymer Magazine Body Has Full Length Steel Internal Insert Stamped and Welded Like The Factory Magazine Injection Molded Magazine Follower Spring is Made From Heat Treated Chrome Silicon Wire Made in the U.S.A. Experience unmatched quality backed by a lifetime guarantee.