I bought an SKS via AuctionArms.com.

Sent the guy an FFL from a local gun shop.

Gun arrives not at the gun shop, but at my house!

Then, it turns out the gun has the serial numbers ground off!!! Just having a gun like that is a Big Crime.

I take the gun to the shop, cut it into bits, I'm out a bunch of money. I called the BATFE, they say "We're sorry to hear you had a problem" and that's the last I heard of them.

The guy is, of course, long gone. I have no recourse. The money is gone.

Don't buy guns online.