Product Description The LANTAC USA RPS End Plate & Castle Nut is a premium AR-15 lower parts upgrade engineered for shooters who demand precision and reliability. Built with high-quality components and a nitride finish for enhanced durability, this end plate and castle nut combo is designed to fit AR-15 platforms and deliver long-lasting performance through rigorous use. Whether you&';re upgrading your buffer tube assembly or replacing worn components, LANTAC&';s precise manufacturing ensures a secure, consistent fit that you can depend on. Product Highlights Precise Manufacturing: Machined to tight tolerances for a consistent, secure fit on AR-15 lower receivers. Nitride Finish: Black nitride coating provides superior corrosion resistance and surface hardness for long-term durability. Durable Construction: Built from high-quality materials designed to withstand the demands of regular use and harsh conditions. Complete Combo Kit: Includes both the RPS end plate and matching castle nut for a streamlined installation. AR-15 Compatible: Designed specifically for AR-15 buffer tube assemblies as a drop-in lower parts replacement or upgrade. Specs Brand: LANTAC USA MPN: 01-UP-RPS UPC: 712038709113 Color: Black Finish: Nitride Compatible Platform: AR-15 Product Type: End Plate & Castle Nut (Lower Parts) Contents: RPS End Plate and Castle Nut 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. ]]>