Can I sell on Gun Broker?

[sigstroker]

I ship long guns using USPS to FFL's and gunsmiths, one rule with shipping long guns through USPS is you must verbally declare you are shipping a "firearm/long gun" to the USPS post office clerk where you drop it off for shipment, most of them do not know what "long gun" means so I tell them it's a rifle or shotgun;

I don't know about that. I've never been asked, even though it was obvious by the box and weight and being mailed to "Ernie's Gun Emporium". On one of them, I volunteered the info but the clerk didn't even blink, or mark any boxes, or anything.

But, like any service industry, it depends on who's working the counter. This woman at FedEx in Marin County nearly had a seizure when I wanted to ship some ammo. So I took it around the corner to UPS, no problems there.