Product DescriptionThe Battle Arms Development Mil-Spec 6-Position Carbine Buffer Tube (receiver extension) is a rugged, USA-made upgrade or replacement for standard AR-pattern lower receivers. Precision CNC machined from 7075-T6 aircraft-grade aluminum impact forging and finished in Mil-Spec Type III hard anodizing (black), it delivers dependable strength and corrosion resistance for hard use. Designed to fit standard AR15/M16/M4 lower receivers, it provides six stock positions for a secure and adaptable length of pull.Product Highlights Mil-Spec carbine-length receiver extension/buffer tube with 6-position adjustment Precision CNC machined from 7075-T6 aircraft-grade aluminum impact forging Mil-Spec Type III hard anodized black finish for durability and corrosion resistance Fits standard AR15/M16/M4 lower receivers (AR-pattern compatibility) Made in the USASpecs Brand: Battle Arms Development Manufacturer Part Number: AR15RE-MIL-6C UPC: 810033781094 Product Type: Mil-Spec carbine receiver extension / buffer tube Positions: 6 Material: 7075-T6 aircraft-grade aluminum (impact forging) Finish/Color: Mil-Spec Type III hard anodized, black Compatibility: Standard AR15/M16/M4 lower receivers (also marketed for AR9/AR10 platforms) Country of Manufacture: USA Included: Receiver extension only (buffer, buffer spring, castle nut, and end plate not included) Dimensions: Length 12.0000; Width 6.0000; Height 1.5000 Weight: 0.3000Disclaimer: 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.