Works great, highly recommended!
It took me a second to figure out how to use it since there are no instructions but MAN is this tool fantastic. I will never be without it. Makes installing triggers a breeze. Hold trigger in lower, line up the holes, drive guide pin in with holder, now hands are free as guide pin is now a slave pin. Then put trigger pin in holder and push out guide pin with trigger pin (its gonna fly out). Push last 1/8” of protruding trigger pin in with back of holder. Repeat for hammer. Tapered tips of guide pins is very clever, makes initial insertion easy. Well done fellas. But instructions would have been nice! Benjamin Belkin