One for sale at gunshop here and it looks really good. Says Dalphon and was made in washington state. Are these any good?

[url]www.dalphon.com[/url]

I think JAFO has one.

I just bought an older one myself.  It has tighter tolerances than any other lower I've ever owned. In fact I couldn't put my new DPMS low rise upper on it. It was just too tight.  I ended up putting another upper on it and it fits like the two parts were machined together.  The trigger and hammer pins fit very snug as well.  The older Dalphon lowers were built by Olympic Arms.  Their new lowers are marked Stinger Arms.