Max Brooks, author of popular zombie books such as World War Z: An Oral History of the Zombie War and The Zombie Survival Guide, paid a visit to the Discovery Channel show Sons of Guns for its season finale.

In the episode, which first aired April 18th, Brooks stepped up to a challenge by Red Jacket Firearms to see who can create the ultimate zombie-killing gun.

You can see two videos from the episode below—one of Brooks first arriving and trying out some starting point guns; the other of teams designing their perfect zombie-killer—and you can catch the episode either on Discovery or on demand.