I know it's been awhile...
But the man finally made it back in.
Not much you can tell from the pics aside from that it used to be a gun barrel.
Condition is actually quite a bit worse that it was initially described, but if you all would, see what you can see.
Even a rough idea of make might be a nudge in the right direction.
"The best diplomat I know is a fully charged phaser bank" - Montgomery Scott