This week's custom LEGO gun is based on the Blunderbuss that was common in the early days of the American colonies and remained in use until the 19th century. The Blunderbuss is a short-barreled large-bored gun with a flared muzzle. Because of that it was best used from a short range, like when shooting at Pirates trying to take over your ship. 

Looks like this Pirate minifigure got the best of this fight. Build your own Pirate minifigure with a Tricorn and Pirate Coat. And light the ship on fire with a Metal Torch. Find more custom Pirate accessories from BrickWarriors here.