Ultra Light, FSC or TCP compensator for attaching Viridian C5L pattern lasers and tactical lights. Solid nylon, pa 12 construction. Printed using the HP Multi Jet Fusion 3D printing method. NOT a picatinny rail. Part will only work with the C5L pattern. Our Kydex FSC / TCP Holster is made to fit this mount with the laser attached. If you purchase a C5L laser tac-light combo from us, this mount is already included.