I am a BDU member. I have seen a few odd unsavory things like a product being out of stock at a great price and increase over MSRP when in stock. Lets take for example the Taurus TX22 Comp pistol, it sat at $350ish for a few months out of stock. When it came back in stock, the price was increased to $480 + $35 shipping when this gun can be had for $450 any day of the week.
Right now they are running .99 shipping for orders over $100 for Memorial Day. But a lot of stuff I want is out of stock at a good price.
Lanbosarmory.com seems to be one of the better firearm dropshippers and the prices almost are the same without paying a membership fee.