Looking at the pics I posted and the OPs I noticed that the tanks in the OPs pic looks like the Chinese type but the wand looks more like the Russian. Look at the stock on the wand. My Chinese pics show 1 horizontal rib and the Russian shows 2. The Russian tanks have some sort of metal grate but the Chinese has the vertical poles that hold the padding.
I hope I'm not hijacking this, but how does the BATFE classify flamethrowers? I would have guessed Destructive Device... but that Russian one doesn't make any mention of that (it needs to be fixed, however).
Edit- just answered my own question. Legal in most states and unrestricted by BATFE. Interesting.