An AR is called an Armalite.
Plenty of info explaining why it has been called other things due to political tactics and ignorance.
Buy a used one for 500 at a gun store. Various brands. Typical price.
Then you have a registered gun for the alphabets to know where to come to get it. Remember, "they" don't register them, they just check you out with their "background" checks. No supposed list.
Build your own and it is yours. Build ten, and they are yours. Dems like to call these "ghost" guns.
Technically you are not allowed to complete your own 80% lower. You are "required" to take that to a gun smith that will stamp a serial number on the lower and turn that into the alphabets so that you are then "registered" in their database.
Build yourself a 223/556 as that is the most common military round in America. That bullet will be available during any type of crisis in this country as well as many nato countries.
You can build your own for around 400 bucks. That would be shipped to your door in pieces in 2-3 days.
When you have built your universal 556, then go ahead and build a shooter with a different round that isn't as common.
300 black out is a great round for sub-sonic quiet can shooting.
6.8 is a phenomenal round that is a really good hunting round.
375 Socom is by far my favorite round.
375 SOCOM Barrels, Uppers, & Parts Archives - Tromix Lead Delivery Systems
That one has a kick but is very reliable where as the 458 socom is too much in my opinion.
Same with the beowulf, just too much. But if you really need to put a hole in the block of a semi truck then this might work.
https://www.alexanderarms.com/product-category/50-beowulf/50-beowulf-rifles/
I know all this as I have a friend that builds his own (not the lower)(disclaimer) and I have watched him many times over the years.
I only have a springfield trapdoor from the spanish American war.
