Why do people want stripped receiver sets? Must just be the catch phrase of the day or something. Anyone with any knowledge can see this is not an AR-15 and therefore would require proprietary parts which would mean buying your receiver set then buying the rest of the parts from them. Maybe the barrel and trigger group are AR-15 compatible but the rest of it looks like it's more AR180 (hence the name) which isn't an easy gun to find parts for.
Just buy the complete rifle, it's not a high end product and is not the type of parts you'd start with for your dream build or a precision semi auto.
I'm not sure why they went with the medium profile barrel, I predict 2-5 MOA depending on the barrel (factory or aftermarket) with no barrel producing better than 2 MOA no matter what ammo you feed it. This is a plinker not a DMR and I doubt anything will make it better than a fun plinker. Would have made more sense to me to go with a light profile and keep it as light as possible.
It looks like an interesting rifle and the price is good. Hopefully the quality is better than the Kodiak SKS chassis I handled a couple days ago, machining was sloppy with tooling marks. As long as it's reliable it should do well though at $1000.
Another non restricted semi on the market is always a good thing, well done Wolverine