Product Description The ETS Group GLK21 pistol magazine is a 13-round, .45 ACP compatible magazine designed to fit Glock 21/30/41 platforms. Built from advanced, extreme-impact polymer with a translucent body, it helps you quickly verify round count while offering strong resistance to heat, cold, UV exposure, and harsh chemicals. Its creep-resistant design helps prevent feed lips and the magazine body from spreading during long-term storage, even when kept fully loaded. An ergonomically shaped floorplate improves handling and makes the magazine easier to grab from pouches, and the specially designed base plate supports easy disassembly for maintenance. Product Highlights 13-round .45 ACP magazine compatible with Glock 21/30/41 Clear/translucent advanced polymer body for fast visual round-count checks Extreme impact resistance plus heat, cold, UV, and chemical resistance for hard use Creep-resistant construction helps prevent feed-lip/body spread during long-term storage Easy-disassembly base plate and ergonomic floorplate for improved handling Specs Brand: ETS Group Manufacturer Part Number: GLK21 UPC: 854094005645 Type: Pistol magazine Caliber: .45 ACP / .45 Auto Capacity: 13 rounds Body Material: Advanced polymer (clear/translucent) Spring Material: Steel Follower Material: Polymer Baseplate Material: Polymer Compatibility: Glock 21 / 30 / 41 Additional Compatibility: Compatible with Glock and aftermarket floorplates; compatible with Gen 1 through Gen 5 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.