I finally got a hold of someone at SureFire to address the crappy finish they put on my SOCOM 762-Mini-DE (Reader's Digest version of the incident--finish started smoking and bubbling after 30rds, now can scrape finish off with fingernail).  Good news--its covered under warranty.  Bad news--turn around time is five to six weeks.

I'm moving in November and SF will only return ship to the address on the Form 4.  The guy I spoke to suggested waiting until after the move to send in the suppressor and said I'd need to get an updated Form 4 with the new address on it so they can ship it back to me when they are done.  I did not know the ATF sent out updated Form 4's.  When I send in the 5320.20 will I get an updated Form 4 or do they just make a note of it in their files?  

Guess I have a lot of paperwork to do before the move.

The ATF doesn't update Form 4s with your new address. Whomever you spoke to is an idiot. I have had AAC do warranty work for me before. I included a copy of my Form 4 with an old address on it and they just shipped it back to my current address.

[email protected]

Try again

This.  ^^^

You could always DIY, just an easier option than sending it in:

http://www.vhtpaint.com/high-heat/vht-flameproof-coating

https://www.amazon.com/SP102-FlameProof-Coating-Black-Paint/dp/B000CPJLGM

https://www.amazon.com/Helix-Racing-Products-High-Temperature-Exhaust/dp/B0041CDODS

When did you last talk to Surefire? I had the same thing happen to me but they have recently corrected this issue.

They are now properly permitting you to tell them the address to ship the suppressor to, you just write on the repair invoice the correct shipping address, and send a copy of your form 4 with it.

Discovered the problem with my suppressor last month (first range trip).  Talked to a SF rep yesterday.  It was the first time I actually got to talk to someone.  I usually spend 20+ minutes on hold before hanging up.  Even tried the auto call back function but never received a call back.

You can actually do a callback feature as well, where they will just call you instead of making you wait on hold. If you're moving in state, they should not need you to update the form 4, I was just having this issue and they finally let me send it in with a note of where my proper address is.