Product DescriptionThe ATI Outdoors Advanced Technology International (ATI) Military-Spec Buffer Tube Assembly is designed to fit most AR-15 and AR-variant platforms (not compatible with .308 rifles). Built from Military Type III anodized 6061-T6 aluminum, this buffer tube assembly is engineered for durability and hard use. The package includes key components to complete an AR-15 mil-spec receiver extension setup, including a steel, military-grade E-coated castle nut and locking ring, plus an AR-15 recoil plug, buffer, and buffer spring. Made in the USA.Product Highlights Mil-spec AR-15 buffer tube complete assembly for most AR-15 and AR variants Constructed from 6061-T6 aluminum with Military Type III anodizing for long-lasting performance Includes steel, military-grade E-coated castle nut and locking ring Includes AR-15 recoil plug, buffer, and buffer spring for a ready-to-install package Made in the USA; not compatible with .308 rifle platformsSpecs Brand: ATI Outdoors Manufacturer Part Number: A.5.10.2240 UPC: 758152900470 Platform Compatibility: Fits most AR-15 and AR variants; not compatible with .308 rifles Material: 6061-T6 Aluminum (buffer tube/receiver extension) Finish: Military Type III anodized Included Components: Buffer tube, steel E-coated castle nut, locking ring, AR-15 recoil plug, buffer spring, buffer Country of Manufacture: USADisclaimer: 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.