Product Description Upgrade your AR-15 or AR-10 build with the Strike Advanced Receiver Extension, a 7-position, MIL-SPEC diameter buffer tube designed to improve both function and aesthetics. Its scalloped exterior helps reduce friction with tight-fitting stocks while trimming unnecessary weight, keeping strength where it matters most. The supported buffer retaining tab aids durability and makes indexing the receiver extension easier, and it is compatible with the Strike Industries Pit Viper Stock. Product Highlights 7-position MIL-SPEC diameter receiver extension for finer length-of-pull adjustment Scalloped surface design helps reduce stock friction and shaves weight Supported buffer retainer tab for improved durability and easier indexing during installation Designed for AR-platform rifles, including AR-15 and AR-10 receivers Red anodized 7075-T6 aluminum construction for strength and standout appearance Specs Brand: Strike Model/Series: Advanced Receiver Extension Manufacturer Part Number: ARARET7RED UPC: 708747546637 Platform Fit: AR Platform (AR-15 / AR-10) Positions: 7-position Diameter: MIL-SPEC Material: 7075-T6 Aluminum Finish/Color: Red Anodized Weight: 3.8 oz Listed Dimensions: 9.0 in (L) x 2.2 in (W) x 2.0 in (H) 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 products manufacturer.