Swoobie, congrats on getting a Custer!
I posted in another thread that I did get a Custer too. I do believe it is 100% American made and that all Custer's are 100% American made. I can find no reference to Custer's existing prior to 2005, which should put them well within the 100% American made timeframe. The one I have is outstanding in every way. Perfect timing, solid lockup, four loud clicks, no burrs or rough spots anywhere and it shoots right to point of aim just like I wanted. While it's true I would rather have an Ainsworth, which is basically a Custer with a blue/CCH finish, I am finding that the Custer finish grows on me.
One thing I discovered in my research that's interesting is I have seen Custer's both with the two line patent dates and three line patent dates.