aroundlsu: I think it should be said again in very simple terms:
You can not attach any type of stock or vertical foregrip to a pistol in the United States.
This is simply not true.
All you have to do is pay a $200 tax and fill out a form for SBR.
ATF regulations CLEARLY allow certain Lugers, Mausers and Browning Hi Powers to have an attached stock WITHOUT the owner having a tax stamp.
Need a FFL in north Dallas/Plano/Allen/Frisco/McKinney ? Just EMAIL me.
$20 transfers ($10 for CHL, active military,police,fire or schoolteachers)