[mrerick]

Pay attention to John's post above.

Just owning the stock without a proper Artillery Luger could be considered "constructive possession" and be prosecuted.

Also, the first one looks refinished.

The second one with the very long barrel is more interesting. I suppose that it could be one of those modified by Pacific Arms after import to the USA although I don't recall them fitting Navy sights to them.

And no, barrels are factory serialized to the gun, and it would not be possible to restore it to original condition, although you could spend quite a bit to restore it to original configuration - and still have a shooter.