Came with a bulk Lego lot. It fits on the head of a mini-fig, but a few things make me think it's not Lego. If it is, any ideas on set? You guys/gals here are a wealth of information.

No, that is not LEGO.  The things that stick out on the side are not on any real minifig torso, and the body on your figure is a rectangle.  A real minifig torso would draw in slightly at the top.

Looks like a mandalorian helmet/jetpack. I can't reasearch it further right now.

Seems to be "chrome" as well, which I don't remember being produced ever (with either Jango's or Boba's)

I think it is from the Jango Fett pen.  My son has one.

 

Edit:  could also be the add-on to the C-3PO pen as well

 

http://www.bricklink.com/catalogItem.asp?***=P2146

Came with a bulk Lego lot. It fits on the head of a mini-fig, but a few things make me think it's not Lego. If it is, any ideas on set? You guys/gals here are a wealth of information.

 

 

Yes, it is the Jango Pen - Unfortunately, no real value.

 

Incredible. This place never disappoints. Not too concerned with value, just couldn't find a body/head to go with it. That explains why.