Here's a pair I just finished. The top is a BRN-10 built from pieces Brownells sold off after they discontinued the complete rifle. They called it a replica of a Armalite / Artillierie Inrichtingen Portuguese AR-10 but it is far far from that. (It has much more in common with a SR-25) Everything to build that is gone and discontinued so there'll never be any more of then.
Then there's AR-15 Prototype #0003 replica built on a NoDak Spud lower that will never be made again due to JJE /Palmetto State buying Nodak and appointing the former owner President of it's new Harrington and Richardson arm. On it is a Brownells 601 upper I had to modify to fit the prototype.
Brownells needs to stick to selling stuff because they can't build firearms.
They went to extraordinary lengths to do get it wrong.
The actual real deal #0003 prototype was at Wanamachers a few years ago for the reportedly price of One Mllion Dollars.