Possibly...I can see that angle too.
I just find it odd that Google would not bring back anything on a search for a product like that.
But...I admit, I could be overly paranoid and Google might offer it in the future I guess.
I trust in the power of the American Free Enterprise system and a free market, to provide alternative services, when others choose to limit themselves and not provide what a segment of the population wants.
This looks to me like an opportunity for a savvy businessman to set up a "Shopping for Firearms" site to fill the gap Google has left.
In fact I'd be surprised if there aren't already such sites....