Product DescriptionThe Ruger AR Lower Stripped Receiver 28500 is a receiver-only foundation for custom AR-platform builds. Machined from 7075-T6 forged aluminum to mil-spec tolerances and finished in hardcoat anodizing, this lower is built for durability, fit, and long-term reliability. Ruger also includes an adjustable tension screw designed to minimize or eliminate play between the upper and lower receivers, helping create a tighter overall fit for your build. This is a stripped lower receiver and does not include internal build components or hardware.Product Highlights Machined from strong 7075-T6 forged aluminum for a durable mil-spec AR platform foundation Hardcoat anodized finish helps resist wear and corrosion during long-term use Adjustable tension screw helps reduce upper-to-lower receiver play for a tighter fit Stripped lower receiver configuration lets builders customize parts and setup to their preference Genuine Ruger receiver-only component ideal for AR builds and replacement projects Specs Product Type: AR lower stripped receiver Configuration: Receiver only Material: 7075-T6 forged aluminum Finish: Hardcoat anodized Color: Black Tolerances: Mil-spec Special Feature: Adjustable tension screw MPN: 28500 UPC: 736676285006 Brand: Ruger 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.