Product DescriptionThe Black Rain Ordnance Left-Hand Bolt Carrier Group is designed for AR-style uppers that eject from the left side. Finished in a Nickel Boron coating for smooth cycling and easier cleaning, this bolt and carrier group is built for .223 Remington/5.56 NATO use and is an excellent choice for left-eject rifle configurations.Product Highlights Purpose-built for left side ejecting uppers (left-hand eject configuration) Nickel Boron coated for enhanced lubricity and simplified maintenance Compatible with .223 Remington / 5.56 NATO chamberings Includes bolt and carrier group assembly Made by Black Rain Ordnance, a manufacturer of modern sporting rifles and accessoriesSpecs Brand: Black Rain Ordnance Manufacturer Part Number: BRO-BCG-LH UPC: 707129994233 Type: Bolt Carrier Group (BCG) Caliber Compatibility: .223 / 5.56 Coating/Finish: Nickel Boron Compatibility Note: For left side ejecting uppersDisclaimer: 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.