pre-ban B-west receiver

My friend is giving me a pre-ban b-west receiver. Take off from a rebuild he is getting done. {FFL transfer} Owes me a favor. Maybe 100 rounds thru it. After I heat treat it, any suggestions on a build? What would you build?

(The trigger holes arent wobbled yet, thats why I'm heat treating first, b-west werent treated when made.) thanks

The word is the B-West receivers are made of non-heat treatable mild sheet steel. You can try to heat treat it and see if it gets hard before you build it. The ejector usually goes before the hammer and trigger holes.

I was hoping it wasn't mild . Ok, on to my next project. Thanks, saved me lots of $$ and time.