Leofoto GSA-80 Arca/Picatinny Rail Black. The rail is CNC machined from aircraft-grade 6061-T6 aluminum and hard anodized for optimal strength and durability. Specifications for Leofoto GSA-80 Arca/Picatinny Rail: Manufacturer: Leofoto Fabric/Material: Aluminum Color: Black Quantity: 1 Last Chance: Yes Features of Leofoto GSA-80 Arca/Picatinny Rail Aluminum CNC Machining Package Contents: Leofoto GSA-80 Arca/Picatinny Rail Leofoto GSA-180: GSA-80 Arca/Picatinny Rail Black