I'd be pretty surprised.
If you're investment casting:
Why not make the recoil lug integral?
Why make it round bottomed?
Why turn it full length, with the machine marks to show you did?
I think Embody (whatever that is) is talking out their ass.
When Ruger, the best investment caster on earth (They make aerospace parts and titanium hip joints, for heaven's sake) decided to do a budget rifle, they turned it from barstock.
The T3 is machined barstock.