Pipebomb

Improvised Explosive Device made by filling a length of pipe with explosives, sealing it and adding a fuse. Pipebombs can be used as an assault weapon (like hand grenades), for demolitions, or for traps.

Wikipedia Article: http://en.wikipedia.org/wiki/Pipe_bomb



Appears in:

• Chapter 12 - Pipebombs are used by the Mallers during The War.
  
• Chapter 24 - Mallers use them again during the destruction of The Tower.
  
• Chapter 35 - Saul reminds people that the Mallers have used pipebombs before, though there is no direct evidence they use them during the fight for The Colony.