It's an interesting piece to say the least.
It's a true Colt factory experimental semi-auto 22 revolver and letters from Colt that way.
When the trigger is pulled, the hammer is actually the only thing that operates. When a round is fired, it looks like it would move the barrel.
The barrel is sleeved and looks like it goes back and forth with each round fired.
When the barrel moves, it looks to move the side mounted lever which actually rotates the cylinder.
The barrel then locks back up into the front of the cylinder when it's retracted all the way and is then ready for the next round.
It's got levers, springs and pins all moving every which way when the round goes off. All it needs is a horn and I'd have to register it as a car.
Jeff (GUNKWAZY)