• Blunderbuss of Khaz Modan
• Item Level 200Disenchants into:
  [Abyss Crystal]: 1
• Binds when picked up
  
• Gun
• Ranged
  
• Speed 2.90
• 300 - 451 Damage
• (129.5 damage per second)
• +32 Agility
  +31 Stamina
• Durability 90 / 90
• Requires Level 80
• Equip: Improves haste rating by 22.
  Equip: Increases attack power by 28.
• 

Source

This item is sold by the following Argent Tournament vendors for 25 :

•  Corporal Arthur Flew <Stormwind Quartermaster> in Icecrown
•  Derrick Brindlebeard <Ironforge Quartermaster> in Icecrown
•  Irisee <Exodar Quartermaster> in Icecrown
•  Rillie Spindlenut <Gnomeregan Quartermaster> in Icecrown
•  Rook Hawkfist <Darnassus Quartermaster> in Icecrown

This item is available to Alliance only. The Horde equivalent is [Sen'jin Beakblade Longrifle].

Patch changes

• Patch 3.1.0 (14-Apr-2009): Added. 
  

External links

• Battle.net (EU)
• Wowhead
• Thottbot
• WoWDB