Per my earlier post, here is the text link:
http://survivalandprosperity.com/tag/flamethrowers/
In there they note "In the meantime, Jesse and Charlie came up with two defensive features for the Willis bunker. One is a bed of metal spikes that swings down from the bunker roof into unsuspecting bad guys.
The other is a handrail with a flamethrower built into it. Dastardly evil stuff."
I'll see if I can find the video on line from the referenced show.