Product DescriptionThe KAK Industry Mil-Spec AR-15 Carbine Buffer Tube Kit is a complete receiver extension assembly designed for reliable fit and function on Mil-Spec carbine buffer systems. This kit includes the essential components needed to assemble a carbine buffer tube setup, featuring a 6-position receiver extension made from premium 7075 aluminum with a black military hard coat anodized finish. It includes a 3 oz carbine buffer and a chrome silicon spring, and is compatible with standard AR-15 buffers and springs.Product HighlightsComplete Mil-Spec carbine receiver extension kit for AR-15 builds and replacementsIncludes buffer tube, 3 oz carbine buffer, castle nut, end plate, and chrome silicon spring6-position adjustment for flexible stock length-of-pull settings7075 aluminum buffer tube with black military hard coat anodized finish for durabilityCompatible with AR-15 buffers and springs (Mil-Spec pattern)SpecsBrand: KAK IndustryProduct Type: AR-15 carbine buffer tube kit / receiver extension assemblyBuffer Weight: 3 oz (carbine buffer)Adjustment: 6-positionMaterial: 7075 aluminum (buffer tube)Finish/Color: Black, military hard coat anodizedIncluded Components: Buffer tube, carbine buffer, castle nut, end plate, chrome silicon springCompatibility: Accepts AR-15 buffers and springsMPN: AR15-KT-003UPC: 811163035781Disclaimer: 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.