Clearing Out Inventory???

Hello, I just wish there were a way to clean up the inventory area of guns that you've got 3 or 4 of (Thompson) or just guns you do not want there anymore. Even guns you win on BM that you decide you just don't wanna have to look at and have them take up so much room!
Of course i'd love to give away 2 of my 3 Thompsons', but if thats out of the question then at least allow us a way to delete guns we already have 1 of or just do not want......How do others feel about this?:)