[Rick Lee]

You can send any part of a gun other than a serialized frame or lower receiver. You can buy Poly80 online all day and have them shipped to your house via USPS. You can buy gun barrels on eBay and from every manufacturer and have them delivered in any state in the US via USPS, no FFL needed. I would be able to live with USPS just insisting they had delivered it and know I'm out the barrel and headache. But some know-nothing, termination-proof postal employee accusing me of mailing a gun and trying to warn me is beyond the pale. I will be pursuing this.