Borderlands 2: Uncle Teddy
Uncle Teddy is a side mission in Borderlands 2
 Quest Giver
Fyrestone (Quest Start)
Find TK's Blueprint
Turn in: Una
Turn in: Hyperion Mailbox
Family is everything.
Rare Pistol (Blue) (Una Mailbox). For example, Amplified Lady Fist
Rare Shotgun (Blue) (Hyperion Mailbox). For example, Leather Tidal Wave
 Progress Updates
 Mission Briefing
A woman named Una has asked you to help her avenge her uncle, Teddy, who lived in Fyrestone. Teddy, a weapons inventor, was exiled to Pandora after Hyperion stole his weapon designs. If you can find proof of Hyperion's patent theft, Una can sue the pants off them, metaphorically.
 Mission Debriefing
You've uncovered the history of T.K. Baha - gone but not forgotten.
Locate TK Baha's house. It is on the south/southwest edge of Arid Nexus Badlands.
Pull emblem in middle of the room, which will reveal the secret basement entrance. Go down the ladder. Loot everything in the room
Listen to any ECHO Recorders you find.
Pull lever on side of vending machine.
Mail plans to Una (using mailbox near Fyrestone Bounty Board) or to Hyperion (Using mailbox near fast travel station)
 Strategy Guide - Tips - Cheats
Open ALL the containers to get every ECHO Recorder. But there is a glitch in which sometimes the last ECHO Recorder does not show up. If this happens, just leave and re-enter the game and search again.
Blueprints to end the quest: Marcus machine in the basement, there is a switch on the side
Make sure to put plans in the correct mailbox
 Turn in Uncle Teddy to Una or Hyperion?
 Mailing Blueprints to Una
When Turning this mission to Una, you get a Lady Fist pistol similar to the Amplified Lady Fist:
 Mailing Blueprints to Hyperion
When turning it in to Hyperion, you get a Tidal Wave shotgun, similar to this Leather Tidal Wave:
So see the rewards above and decide if better to mail blueprints to Una Baha or mail to Hyperion
Other than which reward you get, there aren't any major consequences whether you mail plans to Una or Hyperion. So just choose best weapon for you.