Sent my trigger from a Yugo 59 to Tom. I was considering keeping it for use as a physical therapy finger exerciser, as it had about a 20 pound pull weight after you drug it thru a 1/2 inch of stop-and-go creep!! Tom worked his voodoo, and when it came back it was a true 2-stage, with about 4.5# pull. Kivaari is a miracle worker, thanks Tom.