All our other accessories -universal barrel and 20mm rail 1"" flashlight mount for surefire fenix olight b Highlights generic brand universal barrel and 20mm rail 1"" flashlight mount for surefire fenix olight b Description: Designed to install a flashlight, sight or scope on the barrel (12mm-26mm diameter). Suitable for Nitecore Eagletac Surefire Fenix Olight and all flashlights with 1"" (25.4mm) diameter. The flashlight mount can also be installed on a 20mm rail. Fully adjustable with nuts and screws included. An aircraft-grade aluminum alloy with a matte black anodized finish provides durable performance in the field. specification: Material: alloy The color black Package includes: 1 piece rail mount