A commercially manufactured gun with no serial number is illegal and cannot be owned. A home made gun for self us can.
You really should try reading the posts you respond to before sharing your wisdom. The posts before yours were all discussing pictures of guns, where the serial number was edited out of the picture for privacy reasons. That has nothing to do with guns that don't have serial numbers.
I'm really starting to wonder if you're just a troll on this forum; posting things just to create arguments.
