To 500SWArg- I don't believe that the front sight and trigger guard spur are original, although one can never be sure in the absence of a factory letter. Don't regret the grips not being factory. To me at least, well done modifications to make the gun a better target pistol do not lower it's value. If the work is attributed to a well known source such as Roper or King, the value will go up. Enjoy a beautiful and rare single shot.

Bob