Product DescriptionUpgrade or maintain your AR-platform rifle with the LBE Unlimited Buffer Tube Kit, built with high-quality components and precise manufacturing for dependable long-term performance. This complete kit includes a six-position, mil-spec diameter buffer tube, a carbine-length recoil spring, a mil-spec receiver end plate and castle nut, plus an H2 heavy recoil buffer to help tune cycling and recoil impulse. Finished in black, it's an ideal replacement or upgrade for AR-15 carbine buffer systems.Product Highlights Complete AR-15 carbine buffer tube kit for maintenance, repairs, and upgrades Includes H2 heavy recoil buffer for enhanced cycling characteristics Six-position mil-spec diameter receiver extension (buffer tube) Carbine-length recoil spring included for a ready-to-install package Mil-spec receiver end plate and castle nut includedSpecs Brand: LBE Unlimited Manufacturer Part Number: H2BUFKT UPC: 706612408103 Platform: AR-15 Buffer Weight: H2 (heavy) Buffer Tube: 6-position, mil-spec diameter Spring: Carbine-length recoil spring Included Components: Buffer tube, H2 buffer, recoil spring, receiver end plate, 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 product's manufacturer.