So the big laugh going around yesterday was a picture, via ARFCOM, from a dealer down in Texas with posted notice that stripped lowers are NOT to be sold for building rifles. This of course got more than a couple people poking fun at the incorrectness of the notice.
Well apparently the shop's owner spoke up, and says the ATF said so. Er, at least an ATF agent told somebody who worked there you can't. In my experience, ATF agents have an uncanny ability to make up things on the spot, and quote "legalities" they really don't know anything about. Last time I checked, if you buy a stripped AR lower receiver, you still have to fill out all the paperwork and get a background check just like you're buying a whole new rifle. In fact, last time I picked one up, they had to ask if I intended to build a pistol, because if I did I would have to deal with the state required waiting period. Not to mention the lower receiver is the firearm according to the ATF, so I don't think it would really be possibly to actually use it to replace the lower on an existing AR.
2 months ago