SureShell Aluminum Carrier And Rail For Beretta 1301 (12-GA) - Mesa TacticalSureShell Aluminum Carrier And Rail For Beretta 1301 (12 GA) The Picatinny rails are machined from aircraft grade 6061 T6 aluminum, which are mil spec hard anodized and provide an extremely durable non glare matte finish. The basic saddle rail design provides a robust mounting platform suitable for mounting a variety of optical sights, while a second version, which is nearly identical to the basic version, also includes a Mesa Tactical four, six, or