Product DescriptionThe ATI Mil-Sport Stripped Lower Receiver is built for AR-15 platform builds that demand durable materials, clean machining, and versatile caliber compatibility. Manufactured from 7075-T6 aircraft grade billet aluminum and finished in black anodizing, this stripped lower offers a strong foundation for a custom rifle or pistol build. Designed as a multi-caliber lower, it is compatible with AR-15 configurations and also works with most Glock-style 9mm magazines. This lower includes a proprietary magazine catch assembly and ejector, giving builders key components needed to start their project.Please note that this is a stripped lower receiver and requires a lower parts kit, buffer, and stock of your choosing to complete the build.Product Highlights Machined from 7075-T6 aircraft grade billet aluminum for strength, rigidity, and long-term durability Black anodized finish helps resist wear and provides a clean tactical appearance Multi-caliber design supports a wide range of AR-15 build configurations Compatible with most Glock-style 9mm magazines for added platform flexibility Includes a proprietary magazine catch assembly and ejector to support your custom build Specs Product Type: Stripped lower receiver Platform: AR-15 Model: Mil-Sport Caliber: Multi-caliber Material: 7075-T6 billet aluminum Finish: Black anodized Magazine Compatibility: Most Glock-style 9mm magazines Included Components: Proprietary magazine catch assembly and ejector Country of Manufacture: USA UPC: 892756002687 Manufacturer Part Number: ATIGLOWMS Brand: ATI 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.