The Castaway Bilge Rat Blunderbuss is a weapon in Sea of Thieves. This Blunderbuss can be purchased from the Weaponsmith's Shop in Outposts. Once purchased, weapons can be accessed and swapped from the Armory located on the player's ship.
Once prone to barrel esplosions after overfilling with shot. Should be OK now though.
- This Weapon was added in the 1.0.6 patch released on 1st May 2018.