Send it in you will get your gun back.....I picked up a 624 earlier in the year and when I called on it they said send it in. They emailed me th shipping labels, I went to my local Fed Ex and off it went. In about 2.5 weeks I had it back. There were no marks anywhere to indicate it was magnafluxed. Not really any paperwork to verify it had a clean bill of health except and an invoice type form that listed the gun info. and a line that said tested.