Contessa Picatinny Rails - Hardened Steel 0 MOA Black CZ 550 Ultra Magnum. Available with 0/10/20/30 MOA for long distance shooting. NATO Rail/Grabber Interface Specifications for Contessa Hardened Steel Picatinny Rails: Manufacturer: Contessa Color: Black Fabric/Material: Hardened Steel Gun Rail: Picatinny Condition: New Quantity: 1 Features of Contessa Hardened Steel Picatinny Rails Contessa picatinny rails in hardened steel with are machined from solid designed to guarantee stability and long-term resistance. Screws and wrench for mounting supplied. Package Contents: Contessa Hardened Steel Picatinny Rails Contessa PH50: Picatinny Rails - Hardened Steel 0 MOA Black CZ 550 Ultra Magnum