Product DescriptionThe DoubleStar AR-15 Lower Parts Kit provides the essential internal components needed to complete or rebuild an AR-15 lower receiver using high-quality American-made parts. Its fire control group is produced from mil-spec heat treated 8620 steel and finished at key contact points to deliver a smooth, crisp trigger pull with minimal creep or drag. Designed for reliable function and consistent performance, this kit also includes an additional takedown detent and spring to help keep your build moving forward.Product Highlights Mil-spec heat treated 8620 steel fire control group for durability and consistent operation Finished contact points help promote a smooth, crisp trigger pull with minimal creep or drag Includes an additional takedown detent and spring for convenience during assembly or spares Coiled steel spring pins for secure retention and reliable fit Lower parts kit components selected to support dependable AR-15 performanceSpecs Product Type: AR-15 lower parts kit Model: 556 Color/Finish: Black Fire Control Group Material: Heat treated 8620 steel Included: Additional takedown detent and spring UPC: 841348103417 Manufacturer Part Number: AR270 Brand: Doublestar Corp.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.