This happened a while ago but I got the invective bounty and at the time I was still a noob at the game. I was using this automatic shotgun that fired SUPER fast, called secret handshake I believe. Instead of keeping my legendary I ended up deleting it thinking invective would fire faster and have a bigger mag so 'past me' though why not? Then I deleted it. I finished my invective bounty and upgraded it...I began to quickly realize that my legendary was way better...because of the (dlc) updates I'm pretty sure you can't get it anymore so I couldn't get it back! Sucks