Antique spring assist/gravity wrist daggers

[Atlantia]

Originally Posted by josh stout

Wow, you found one. That looks pretty typical of the ones I have seen pictures of. I wonder how old it is? I see things that make me think it has some age, and things like the slot cut into the side that look recent.

Notice how thick the spring seems. It looks like it had some power.
Josh

The spring looks like its out of a cheap chinese air-gun. I think it would be fairly easy to make something along these lines.
Be fun to try!