The Battle Arms Development Authority Elite complete upper receiver delivers premium performance for AR-15 platforms with a 16" barrel chambered in 5.56 NATO and M-LOK handguard system.Battle Arms Development Authority Elite Complete Upper Receiver16" barrel length chambered in 5.56 NATOAR-15 platform compatibilityM-LOK handguard for versatile accessory mountingIncludes BAD Rack-15 Ambidextrous Charging HandleIncludes AR15/M16 Bolt Carrier Group (BCG)Anodized finish for durabilityThis complete upper receiver assembly provides everything needed for AR-15 builds featuring Battle Arms Development's precision engineering and quality components for reliable performance in tactical sporting or recreational applications.