No the thimbals were sand cast and bought from Tip Curtis. The trip to Tip's shop was very worthwhile (8-9 hour drive one way). I brought my Copy of Kindig's "Thoughts on the Kentucky Rifle in its Golden Age" and he had a couple other books. Between these we were able to look through his extensive inventory of parts to really lay out the parts that fit with the rifle style I was trying to emulate. I simply cleaned and polished the castings and added the flats and wedding band to the extension on the entry pipe.