If you are referring to VR-4JR Mk.1 or Mk.2, then I have these spikes in my stock of VSA parts. I am not an official dealer for VSA, but I do have a large collection of VSA replacement parts from some of the models VSA made in China. These are the original spikes that were shipped with these models. They are 1/4-20 threads, black color, with locking nuts. Contact me at Warren@NewForHalf.com if anyone wants a set. --Warren