Found this on begarausa.com .
Will the Bergara Barrels Optima Elite barrel fit my CVA Optima, or Optima Pro?
A:
No, due to federal laws the center fire barrels will only fit the Optima Elite. Any attempt to alter a barrel to fit to any gun frame not specifically designed to take it will void any and all warranties.
I know now that it is interchangeable. I guess my concern is, I have a friend who has a Thompson Center he changed the barrel on and it had headspace problems. And I just want to be safe, and need to know if need a go gauge or no go gauge to check the headspace on it.
