Product DescriptionUpgrade or refresh your AR-15 recoil system with the LBE Unlimited Buffer Tube Kit featuring an H3 heavy recoil buffer. Built with quality components and precise manufacturing, this kit is designed to enhance durability and reliable cycling. It includes a six-position mil-spec diameter buffer tube, carbine-length recoil spring, receiver end plate, castle nut, and H3 buffer1 components needed for a complete buffer tube assembly replacement or build.Product Highlights Complete AR-style buffer tube kit with H3 heavy recoil buffer for tuned recoil system performance 6-position mil-spec diameter buffer tube for compatibility with mil-spec adjustable stocks Includes carbine-length recoil spring for AR-15 carbine buffer systems Mil-spec receiver end plate and castle nut included for secure installation Ideal for AR-15 maintenance, replacement, and build upgrades using reliable LBE Unlimited componentsSpecs Brand: LBE Unlimited Manufacturer Part Number: H3BUFKT UPC: 706612408110 Platform Fit: AR-15 Buffer Included: H3 heavy recoil buffer Buffer Tube: 6-position, mil-spec diameter Spring: Carbine-length recoil spring Included Hardware: Receiver end plate and castle nut Color: BlackDisclaimer: 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 products manufacturer.