www.collectorsarmoury.com.au/

They are really good. The $50 beretta is a great realistic looking prop.

On ebay some guy sells some toy M16s for $150 for five. You will need to paint them and fill in the screw holes when you get them.

On the black market you can pick up real guns for...sorry you didn't hear that.

Air soft guns are the ones you want but are also illegal.