I had the "in stock", then suddenly "Oh wait, that's wrong!" thing happen several times to be, but not when buying mags, it was when I was trying to buy my S&W M&P 15 OR. Everytime I found a great deal on GB for one, I would buy it, get a confirmation I had bought it, then a little while later, a message saying that the one I "bought" was on lay-away and no longer available. That happened FOUR times. To say it smells fishy is putting it mildly. At least two of the places relisted a bunch of guns with much higher prices on them. Hmmm. I finally went to Bud's and got one, for only about $100 more then the cheapest one I tried to buy on GB. It came in a few days. That gun is now selling for double what I paid for it.