Product DescriptionThe Advantage Arms .22 Long Rifle conversion kit magazine for Glock 20 and Glock 21 is a high-quality, durable polymer magazine designed specifically for use with an Advantage Arms rimfire conversion slide kit (not included). With a 10-round capacity and last-round hold open functionality, it's an ideal choice for affordable training at the range while maintaining the feel and handling of your carry or duty pistol. This magazine is intended for use with a .22LR conversion kit only.Product Highlights Purpose-built magazine for Advantage Arms Glock 20/21 .22LR rimfire conversion kits Durable polymer construction for reliable range training 10-round capacity to support consistent practice sessions Last-round hold open feature for improved training realism Made in the USASpecs Brand: Advantage Arms Manufacturer Part Number: AACLE2021 UPC: 094308000725 Caliber: .22 Long Rifle Capacity: 10 rounds Material: Polymer Compatibility: Glock 20 / Glock 21 (for use with Advantage Arms .22LR conversion slide kit only; kit not included) Country of Manufacture: USADisclaimer: 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.