Components can be quickly mounted to or removed from rails via CXL95 carriers. Three carrier sizes are designed to support positioners with 50 mm, 80 mm and 120 mm width sizes on the X95 Rail. English or metric mounting holes allow direct mounting of a wide selection of linear stages, rotation stages and optical mounts. For easy assembly and disassembly, carriers can be removed or installed at any point on the rail by loosening the thumbscrew and tipping the carrier. A unique clamp design eliminates contact between the screw shaft and rail for easier sliding, more stable positioning and prevention of possible rail damage from over tightening. Strong, secure dovetail mounting design allows carriers to be mounted vertically on the sides of the rail, or even suspended upside-down from the bottom of the rail.