What are you building?
I'm not building anything as I'm too ignorant.
Barry built me a full house 1911 on a Rock River frame and slide, C&S internals, 10-8 sights, welded on magwell and lots of other goodies. It's going to get NP3'ed soon.
BTW: Do you know what the Dr. uses for barrels? Trying to decide what to get for this steel challenge gun I'm building.
I had him use Nowlin in both my guns he has built. I'm not exactly sure what he prefers.
EDIT: There ya have it.
I got a GREAT deal on receivers. Picked up three Caspian magwell receivers for about $110 each. Also picked up a stainless GOVT slide for $45. All brand new, contract over runs. If I'm not mistaken, the slide must have been a Sig slide. The only thing I don't like about it is the external extractor... but for the price... you can't beat it.
I remember caspian selling those as a kit and it was a helluva deal IMHO.