Seems too heavy for a toy gun

[Beercanman]

Well I'm absolutely no firearms expert and maybe this should go in what is it, but I found it today and was my only dig.
I work at a place that has a true colonial site in its. "Backyard. " I save this site for quick hunts and have pulled some nice stuff. This phone ap cuts me off so this is continued

 

[Beercanman]

So this is obviously not colonial but here it is. BB gun? It is non magnetic and is semi heavy for its size.

 

[EccentricInTexas]

If its non magnetic I would say it probably came from an old Cap gun of some kind.