Product DescriptionThe Battle Arms Development Workhorse Upper Receiver is a stripped AR-15/M4 upper receiver built for shooters who want a durable, lightweight foundation for a custom rifle build. Machined from 7075-T6 aluminum and finished in OD Green Type III hard coat anodizing, this receiver combines strength, corrosion resistance, and a distinctive appearance. It features an M4 feed ramp and a top-notch cut designed to match the WORKHORSE and RIGIDRAIL aesthetic. This upper receiver does not include the ejection port assembly, forward assist, bolt carrier group, charging handle, or muzzle device, making it ideal for builders sourcing their own components.Product Highlights Constructed from rugged 7075-T6 aluminum for strength and reduced weight in AR-15/M4 builds OD Green Type III hard coat anodized finish helps resist wear and corrosion M4 feed ramp supports reliable compatibility with AR-15/M4 platform components Top-notch cut complements Battle Arms Development WORKHORSE and RIGIDRAIL styling Stripped upper receiver configuration allows flexible customization with builder-selected parts Specs Brand: BATTLE ARMS DEVELOPMENT Model: Workhorse Product Type: Upper Receiver Platform Fit: AR-15 / M4 Material: 7075-T6 Aluminum Finish: OD Green Anodized Anodizing: Type III Hard Coat Feed Ramp: M4 Bolt Carrier Group Included: No Charging Handle Included: No Muzzle Device Included: No Ejection Port Included: No Forward Assist Included: No MPN: WH556-URS-ODG UPC: 810033785054 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 product&';s manufacturer.