I bought a 7.62 caliber BCG for a receiver I had recenlty. I checked a ton of dealers without much success. This one, however, had them in stock! It was called "Maxim Firearms" in Arizona. Everything looked legit and I ordered the item. They charged tax and shipping and sent a followup email, etc., etc. I decided, thankfully, to use Paypal to pay them. Bottom line, after a week, no further info or shipping status. After two weeks, no replies to three tersely worded emails. Third week I contacted paypal. they immediatly got onto the shipper and would let me know. three weeks later, I have a check arriving for the total including my shipping and taxes, $179. I went a bit further to find out there was a Maxim firearms but believe they went into foreclosure.
So, you can't always spots the trouble makers and getting your money back might be difficult or even impossible. That hurts. Paypal (I know....I know) however did work on my behalf. BTW Their website is still up. BEWARE