I had two 320s sent the update info in for the full , but the W marked L/E 320 would not go . I sold off the full size and kept the L/E package , I just got all the email info to send the one in but its gone traded . I may just send them the L/E Com what would be the problem I need this one done now . My RMA return label is ready to print .They will just get my other gun . This thing is a tac driver and has a good trigger , I never sent my old model Rugers in or my old 45s whats the difference.

Whats your question? 

I would not send in a serial number that they are not expecting.  That sounds like a good way to lose a pistol in their system.

I got the distinct impression that all P320 discussions go in the official thread.

I was thinking the same things you are . I may call them , should I send at all . never a problem with this drop fire gun or any old Ruger or Colt 1911s.

I called them and he said get a new RMA number, he did not know what they would do ,said they were doing them in a different area . Sorry for posting wrong area. I see different 320 posts was not sure .