Buying 12.5 inch barrel need to re-register??

[Clobbersauras]

Hi guys,
I'm buying a 12.5 inch barrel for my HP9 do I need to have it re-registered? New FRT # and all that?

Thanks,
Clobshotgun:

 

[rommelrommel]

If you were under 470mm before, you don't have to reregister.

 

[Clobbersauras]

Thanks!