PLS help to get rid of a stuck mission weapon! (PS4)

Hi, I was doing the “It ain’t rocket surgery” mission and when you get a chest with the two cryo weapons I picked them both up. After the mission one of them disappeared but I have the other one stuck in the inventory and can’t get rid of it. It’s not seen by a store or grinder and when I full up my inventory and hold to pick up a weapon to equip it (I lost weapons like that in previous borderlands) it wouldn’t do it. Is there any way to get rid of it?

NEVER mind… It disappeared after I did the Hot Head mission. lol sorry