Product DescriptionThe CMMG Receiver/Pivot Takedown Detent is a small but essential replacement component for maintaining proper function and retention of your pivot and takedown pins. Designed for compatibility with AR-15 (Mk4) and LR-308 (Mk3) platforms, this detent is ideal for completing a build, refreshing worn parts, or keeping a spare on hand for maintenance.Product Highlights Replacement receiver detent for pivot/takedown pin function and retention Compatible with AR-15 (Mk4) and LR-308 (Mk3) platforms Ideal for repairs, rebuilds, and preventive maintenance Compact, easy-to-store spare part for your AR parts kit Genuine CMMG part matched to manufacturer specificationsSpecs Brand: CMMG Manufacturer Part Number: CMM55CA53A UPC: 810046232040 Product Type: Receiver/Pivot Takedown Detent Compatibility: AR-15 (Mk4); LR-308 (Mk3) California Proposition 65: WARNING Cancer and Reproductive Harm p65warnings.ca.govDisclaimer: 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.