I just did a weapons exchange, I docked and equipped them, undocked and one of the BLUE BLAZEs were gone. I'm positive that I equipped it and did not sell it. The dealers name was [IND]Jaime's.Gun.Parlor. He/she can vouch that what I'm saying is true. Sorry that we didn't get any screens, hopefully you can still help. The chars name is Jaina.Osborne.
I can vouch for this, I was Jamie's.Gun.Parlor, and I sold both of the BLUE BLAZE codenames to Stygian's character. I started with three guns on my store, ended up with one, but one went missing from Jaine.Osborne, which I was notified of straight away.
I am certain that I transfered both, from both what I saw in the trade screen, which I didn't take a screenshot of, as well as how many are left on my store now.