Product DescriptionThe CMMG AR-15 Carbine Action Spring is a replacement buffer spring designed for AR-15/M4 carbine systems. Ideal for new builds or routine repairs, this action spring helps maintain consistent cycling and reliable function in a carbine-length receiver extension. Manufactured by CMMG, it is designed to meet or exceed mil-spec standards.Product Highlights Carbine-length action (buffer) spring designed for AR-15/M4 platforms Great for new builds, maintenance, or replacing worn springs Designed to meet or exceed mil-spec performance expectations Helps support reliable cycling in carbine buffer systems Genuine CMMG component for AR-15 lower/buffer assembly parts kitsSpecs Brand: CMMG Product Type: Action/Buffer Spring Platform Compatibility: AR-15 / M4 (Carbine) Manufacturer Part Number: 55CA9A2 UPC: 815835013480 Weight: 0.1 lbDisclaimer: 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.