Hello,
I hope I'm in the correct section.

I have a friend who is asking me to build an AR pistol for him. He already has a brand new AR lower that included a stock but has never had any upper on this receiver.

My question : If I install a short barrel and remove his stock and install a forearm brace, is this legal ?? I don't want either of us to get into any trouble.

Opinions would be greatly appreciated !!

Thanks, mike

All-caps thread titles get the frown here.

I think it might depend on what the 4473 said when he bought it. If it transferred as a rifle lower, that’s all it can ever be without a tax stamp.

Smudge is correct if the lower was transferred as an “other” it can be made into a pistol. But if transferred as a rifle then it has to stay a rifle. The lower must be transferred as other or specifically as a pistol to be assembled into a pistol

is it "other" or "receiver" on a 4473?

We recently had a thread on this. The ATF guidance is clear. If the receiver in question has never been built as a rifle you may make a pistol. the 4473 transfer type is not relevant. If it has already been built as a rifle then it would constitute a "weapon made from a rifle" and an NFA firearm and you can't.

quote:

Originally posted by hrcjon:
We recently had a thread on this. The ATF guidance is clear. If the receiver in question has never been built as a rifle you may make a pistol. the 4473 transfer type is not relevant. If it has already been built as a rifle then it would constitute a "weapon made from a rifle" and an NFA firearm and you can't.

Thank you ! This is exactly the knowledge I was hoping for. I appreciate your time. mike