The first one is the cut-down M1 Carbine carried by Patty Hearst in the bank robbery for which she was convicted and later pardoned. That blue coat with the orange lining is what she was wearing during the heist.
And this is the UniGun, made from scratch by the Unibomber, Ted Kaczynski:These and many more guns are in the Newseum in Washington, DC.
And now with the Unibomber's cabin, fully re-assembled.
It smells funny.