Product Description The Elite Tactical Systems Group (ETS) GLK-21-18 magazine is a high-capacity, translucent clear .45 ACP magazine designed for Glock-compatible platforms. Built from advanced, extreme impact-resistant polymer, it is engineered to handle hard use without cracking when dropped and to resist becoming brittle in harsh environments. Its creep-resistant construction helps prevent the feed lips and magazine body from spreading during long-term storage, even when fully loaded. Product Highlights 18-round capacity .45 ACP magazine for extended range time and fewer reloads Advanced polymer construction for extreme impact resistance and long-term durability Translucent clear body helps you quickly confirm remaining round count Superior temperature and chemical resistance to perform in harsh conditions Designed for Glock 21/30/41 fitment (Glock-compatible) Specs Brand: Elite Tactical Systems Group Type: Handgun magazine (detachable) Caliber: .45 ACP Capacity: 18 rounds Color/Finish: Clear / Translucent Material: Polymer Compatible With: Glock 21 / 30 / 41 (Glock-compatible) Manufacturer Part Number: GLK-21-18 UPC: 854094005669 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.