Ouch.
How far did stuff fly/fall/land?
Nothing really flew or fell away. I had the gun on a towel on the table. There’s a washer between the arm and the frame that dropped onto the towel when I picked up the gun. Same for a very small push rod that’s inserted into a spring. It too fell onto the towel. The screw has another odd-shaped washer that fits into the opening of the arm when the screw is tightened. They stayed together.
The problem is, putting pressure on the push rod/spring so the screw can be inserted and tightened into the frame. My fingers are just too big and unwieldy to do it well. I might have to take it to a gunsmith who has the proper tools...