Eagles, if you really study the SxS flinters they are quite different from the SxS perc. guns. Yes, the barrels are SxS, but the location of the locks is all different. Perc. locks more or less fit under the barrels. Flint locks are aside of the barrels. This also changes the positioning angle of the locks, to make the wrist a little more slender. Granted, not all are made that way, it just depends on what period of flinter, you are recreating. It would be great though if someone were to factory build one.