Howdy!, I picked up a nice Armi San Marco Walker Colt. I tested the waters with a pair of 1851 Navy pistols and am now hooked on BP too. This one was made in 1980. Anyone have any experience with Armi San Marco? It seems fine in all respects, broke it all down and cleaned it in the ultrasonic. One nipple was really stuck, needed a penetrating oil soak AND the heat gun AND some fine file work on my nipple wrench. Scared the hell out of me when it popped loose. I thought it snapped in two! Everything worked out well and will take it to the range next week. Regards to All.