Product DescriptionThe ProMag GLK-A23 is a high-capacity 28-round 9mm magazine designed to fit Glock 48 and Glock 43X pistols. Built in the USA and backed by a lifetime guarantee against manufacturer&';s defects, this magazine features a proprietary DuPont Zytel-based polymer body with a full-length steel internal insert stamped and welded for added strength, along with an injection-molded follower and a precision-wound, heat-treated chrome silicon spring for consistent feeding.Product Highlights 28-round capacity magazine for 9mm Glock 48 and Glock 43X pistols Proprietary DuPont Zytel-based polymer magazine body with full-length internal steel insert Steel insert is stamped and welded similar to factory magazine construction Injection-molded follower paired with heat-treated chrome silicon spring for reliable cycling Made in the USA and backed by ProMag&';s lifetime guarantee against manufacturer defects Specs Brand Name: ProMag Industries Type: Pistol magazine Compatibility/Fit: Glock 48 / Glock 43X Caliber: 9mm Capacity: 28 rounds Body Material: DuPont Zytel-based polymer with full-length steel internal insert Follower: Injection molded Spring Material: Heat-treated chrome silicon wire Country of Manufacture: USA Manufacturer Part Number: GLK-A23 UPC: 708279016394 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.