These are registered receivers so you will be filling out the FFL transfer for 4 guns even though they are only folded steel. I have seen parts kits and barrels for 128 but they are full auto so watch out what "Kits" you get to complete the firearm. 922 compliance they can bite my big toe.

Still can't vouch for the company but the deal is too good to be true and I wanted to pass the black Friday special along.