Product DescriptionThe JE Machine Tech PS-ST2B+PS-BTM Mil-Spec Stock Combo is a practical upgrade or replacement set for AR-15 and AR-10 platform rifles that use a standard carbine receiver extension. Built around true Mil-Spec dimensions, this combo pairs a 6-position collapsible buttstock with a matching buffer tube assembly for dependable fit and function. The buttstock is made from high-strength, impact-resistant polymer, while the receiver extension is machined from 6061 aluminum and finished in hard black anodizing for durability and corrosion resistance. Product images show a complete rear assembly kit including the stock, buffer tube, buffer, spring, castle nut, and end plate, making it a convenient option for new builds, repairs, or spare parts.Product Highlights Mil-Spec 6-position collapsible stock combo designed for AR-15 and AR-10 rifle platforms High-strength polymer stock delivers lightweight handling and durable everyday performance 6061 aluminum buffer tube with black anodized finish helps resist wear and corrosion Adjustable carbine stock offers multiple length-of-pull positions for improved fit and control Ideal for rifle builds, stock replacement projects, or refreshing worn rear-end furniture Specs Brand: JE MACHINE TECH Manufacturer Part Number: PS-ST2B+PS-BTM UPC: 811577034011 Product Type: Mil-Spec stock and buffer tube combo Platform Fit: AR-15, AR-10 Stock Style: 6-position collapsible Color: Black Stock Material: Polymer Buffer Tube Material: 6061 Aluminum Finish: Black anodized Approximate Product Weight: 1.24 lb Stock Weight: Approx. 7.10 oz 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.