If you call TCArms they will mail you a copy of the court decision in favor of TCA on the legality of the pistol and rifle frames being used and changed. As long as you do not put a long stock on a barrel under 16". The Supreme Court said: "With these systems(Encore and Contender) a receiver may be assembled either with a pistol grip and pistol barrel, or with a shoulder stock and rifle barrel(minimum length 16 inches). A barrel under 16 inches in length must never be assembled onto a reciever when the shoulder stock is attached. within that parameter, the consumer may use the parts to make a pistol or carbine, and may change the configuration at will." Quoted from their letter. Seems to be plain as day.
I know for a fact that their customer service people is instructing customers to do exactly what is illegal to do
with any other pistol or rifle. If I did as they said (if I did not know any better), and then got arrested, TC would have
a serious lawsuit and likely pay out a mountain of money. Lets just say that they would be totally liable for legal
misinterpretations. As far as the Feds, there are plenty of unconstitutional things that the Federal Government does on a regular
basis and most people don't care and will not question. The gray areas that cross the line regarding any amendment are determined
by courts and agencies of the government. Unfortunately, the ATF has the job of determining any gun legal issue that is not specifically
spelled out. Somehow certain people got it in their head that the TC Supreme Court case was about granting new rights to
gun owners. Sorry folks. Not everyone drank the cool aid. TC went to court over the right to sell a kit. The court ruled in favor
of allowing TC to sell the kit. That is it. The court did not argue what all Mr. Jones can and cannot do with all his guns.
It's better to clearly know what your government will lock you up for, then to live in an imaginary demension where
ignorance is bliss and lack of good judgement may result in prison sodomy at Club Fed.