Took my B-3 out of the stock and the first thing I noticed was the little pin which holds the sheet metal trigger to the trigger block fell out. Was a minor miracle I could find it. That trigger arrangement with the little straight spring must be the Chinese getting back at us for the Korean War. I got it back together, it fell out, again, found it and reassembled. Only thing is, it wants to walk out now. Though it might be tapered but it doesn't want to stay put either way. The stock is not tight enough to retain it. How do you keep it from sliding on out? I'm thinking I will have to get a finishing nail and trim it so that it sticks out on either side and just clears the stock.