Hi Steven, yes sir, that is how the can attaches. It has up to a 33 ft range. They do not say what the fuel cell is made of, but it sure looks plastic/polymer to me.
Stay safe & have a great day!

Hi Steven and welcome. Some good details in this video : youtube.com/watch?v=0lqz_bfyFhA ------- Cheers and stay safe!

With an innovative polymer housing and robust spark ignition system, the XM42-X is the most technologically advanced flamethrower out there. This XM42-X was designed to be a fully modular system. Utilizing the different grip options, along with the complete built in rail system, it can be fired in whatever configuration you desire.
Uses
Safely light fireworks
Devistate brush piles
Melt snow
Eradicate pests
To see it in action, just do a quick YouTube search.