Shipping options?

[kamagong]

What shipping options do you guys use when you sell an upper? I'm not a big seller of gear so I'm not very experienced at this and I was wondering if it would be okay to use USPS. I know the lower is considered the firearm, but part of me is worried that USPS might look askance at what looks most like the gun.

Thanks in advance.

[Flintlock Tom]

Gun parts that are not a "gun" can be shipped any way you choose. Find the cheapest means available and insure it.
I usually use USPS.

[shtr45acp]

have done the usps thing many times...parts, uppers, and even complete rifles (the latter to a FFL holder). You'll be ok with shipping the upper...make sure you insure it for replacement value and have signature required at the other end.

[paul0660]

Complete long guns and parts can be sent via usps. They will ask you if the item is dangerous or prohibited, and the answer is no.