Mesa Tactical's SureShell Aluminum Carrier and integrated rail feature Picatinny rails machined from aircraft grade 6061-T6 aluminum, which are mil-spec hard anodized and provide an extremely durable non-glare matte finish. The SureShell Aluminum Carriers with the integrated rail includes a Mesa Tactical six-shell SureShell shotshell carrier mounted on the left side of the receiver. This version is manufactured in compliance with MIL-STD-1913 Picatinny specifications, and no gunsmithing is required for installation. These new rails offer a perfect solution for adding optical sights and SureShell shotshell carriers to shotguns equipped with Mesa Tactical's LEO telescoping stock and pistol grip system.