AR pistol lower question.

[Bako]

Happy Independence Day!

If I build an AR pistol with a brace, do I need to buy a designated pistol lower?  Or can I use just any lower?  How about using a lower I machine myself?

Utah doesn't require serial numbers or registration of AR lowers. If you purchase from a FFL, you may do as you wish with it, pistol or rifle, although you will get a serialized lower if it is a 100% finished receiver. That will be processed like any firearms transaction, with a quick background check. You'll be able to take the lower with you upon purchase. You can also purchase an 80% lower and mill it out then build whatever you want.

It's great to live in a free state.