Product DescriptionThe CMMG AR-15 Buffer Assembly is a quality replacement buffer designed for AR-15/M4-style rifles that use a carbine receiver extension. Built to mil-spec standards, it's an ideal choice for maintaining reliable function in carbine-length setups and is the same style of buffer used in CMMG 6-position M4 stock kits.Product Highlights Replacement AR-15/M4 buffer assembly for rifles using a carbine receiver extension Mil-spec construction for dependable fit and function Designed for carbine-style recoil systems Buffer type used in CMMG 6-position M4 stock kits Great option for repairs, maintenance, or completing a carbine receiver extension setupSpecs Brand Name: CMMG Product Type: AR-15 buffer assembly (carbine) Compatibility: AR-15/M4 rifles using a carbine receiver extension Specification: Mil-Spec Manufacturer Part Number: 55CA977 UPC: 815835013497Disclaimer: 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.