Okay so I have been reading and reading and so far have learned; The VTR uses standard commercial AR stuff. I would like to change from the fixed A2 stock to a 6 position collapsable. Does anyone know if the buffer/extension tube that comes on the VTR fixed A2 will work with the standard commercial stocks? Can I just removed the fixed and slide on a collapsable? Or will I need to change the buffer tube too? Is there different buffer tubes? Thanks for any and all help!


















































