Don't get your hopes up here. It's been a long time since I had to think about Flaig's.
There was a company named "Flaig's of Millvale" from Millvale, Pennsylvania.
They imported mid to high quality European rifles under their own name. They may have varied the name to just "flaig".
They were the big Kahoona when I was growing up in the Pittsburgh area.
Most were built on either an FN (Herstel, Belguim) action or an Oberdorf action.
They also did gunsmithing and restoration on customer provided actions including the woodwork, checkering and engraving.
Generally considered high quality products with an excellant reputation. Like Herters in Wisconsin, a lot of their business was mail order.
They went out of business thanks to the GCA of 1968 and the restrictions for both mail order and importation.
Wouldn't mind picking one up myself.
That's about all I can offer.
Watch yer 6!
Dave Renn