Brother...
I absolutly understand what you are saying.
Here is a link to the BATF letter stating ANY buffer tube is ok on a pistol. And the fact that the buffer tube is capable of accecpting a stock does not make it a stock in and of it self
http://www.kwikrnu.com/BATFE%2520opi...52010-3-11.pdf
I added a pic of the pertinent part of the letter as well. Its dated sometime in 2011 if i recall.