Universal mount for FX Chronograph.
Fits Arca-Swiss rail, Picatinny rail, Velcro-strap and rubber band mount option.
To replace original FX mount chronograph must be disassembled (remove battery cover and four screws in the corners of the chronograph).
Listing is only for mount (chrono, Velcro starp and rubber band not included).
Part is printed to be tight fit on the Arca and Picatinny that i have here but in some cases it may be more or less loose or tight (work it in if too tight or add piece of electrical tape if too loose).