Product Description The ProMag DRM-A19 is a high-capacity 50-round drum magazine designed to fit Glock 22 and Glock 23 pistols chambered in .40 Smith & Wesson. Built in the USA, it features durable polymer construction and a precision-wound spring engineered for long-term reliability. ProMag backs this magazine with a lifetime guarantee against manufacturer defects, and each step of the assembly process is checked to maintain consistent quality. Product Highlights 50-round drum magazine capacity for extended range time between reloads Durable polymer drum housing (DuPont Zytel-based polymer per manufacturer/distributor listings) Precision-wound, heat-treated spring design for reliable feeding Designed to fit Glock 22 and Glock 23 .40 Smith & Wesson pistols Made in the USA and backed by ProMag&&';;s lifetime guarantee against manufacturer defects Specs Brand: ProMag Industries Manufacturer Part Number: DRM-A19 UPC: 708279014529 Type: Handgun magazine (drum style) Caliber: .40 Smith & Wesson Capacity: 50 rounds Firearm Fit: Glock 22, Glock 23 Construction/Material: Polymer (DuPont Zytel polymer listed by distributors) Country of Manufacture: USA 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.