Spartan Precision Equipment Arca to Spartan Converter 12mm Black. Made from CNC machined 7075-T7531 aluminium with a durable hard-anodised finish the Arca to Spartan Converter attaches quickly and securely and is compatible with all Spartan Classic adapters enabling rapid rifle attachment. Specifications for Spartan Precision Equipment Arca to Spartan 12mm Converter: Manufacturer: Spartan Precision Equipment Color: Black Weight: 1.1 oz Features of Spartan Precision Equipment Arca to Spartan 12mm Converter CNC machined from 7075-T7351 aluminium billet with a hard-anodised black finish Compatible with all Spartan Classic adapters Fits most third-party Arca compatible ball and pan heads Package Contents: Spartan Precision Equipment Arca to Spartan 12mm Converter Spartan Precision Equipment SP06-029-R: Arca to Spartan Converter 12mm Black