Dbrevit,
Can you tell us about the correct cocks that are availible? I bought a Harpers Ferry Pistol cock from the Rifle Shoppe but found that the the square tumbler hole was not indexed correctly with the tumbler. I'd love to put a correctly styled and indexed cock on my pistol. I think you scored big on getting a correct .54 smooth bore barrel.
Mark Hubbs
I would not be surprised to find the Rifle Shoppe cock was correct and that Pedrosoli and previous manufacturers had machined the square on the tumbler where it was convenient, read cheapest, for them.