Yes. The lower receiver has to be transferred to you as a pistol or “other” most dealers do “other” for stripped lowers. It is illegal to make a pistol from a rifle, therefore you cannot have it transferred as a rifle if you intend to make it a pistol. Braces are legal in most areas, obviously check your local laws if you aren’t sure. I’m not a lawyer. In most areas, purchasing a stripped lower is the same process as any other Title I firearm. Make sure you use a pistol buffer tube or a buffer tube that doesn’t have the notches for stocks. Having a short barreled firearm that a stock can be easily attached to can be considered “constructive possession”. Also, be careful with short barreled uppers laying around. Generally, you want to make sure that your pistols remain completely assembled as pistols. Loose rifle lowers and pistol uppers could get you in to some trouble with the ATF. I personally own an AR pistol and have been very pleased with it, you just have to be careful with the legalities. Your best bet would be to study the NFA regulations and talk to your dealer before you do much. Happy building!!
P.S. Don’t forget that you CANNOT put a vertical fore grip on said pistol. That would make it an AOW which also requires NFA registration.
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