[Unclenick]

If you go to a hobby shop you can buy thin-wall black plastic tubing used for model making. Pick out a piece with a hole about 3/16" inside. Get a bottle of the thick gap-filling cyanoacrylic (superglue) cement and a squirt bottle of accelerator and a piece of fine sandpaper. Cut a quarter inch of tubing. Pick a spot at for the sight at the rear of the barrel over the chamber. Lay the sanpaper back-side down over this spot and, orienting the tube parallel to the barrel, press it against the sandpaper and rub back and forth until you just start to break through the wall of the tube and into the hole. Remove the sandpaper, blow off and wipe clean with alcohol, then tack this improvised ghost ring onto the barrel with a tiny bit the glue. Look through the tube while you do this so it winds up correctly aligned. When it is stuck in proper alignment, lay the gun on its side, squirt the sight with the accelerator and run a fillet of glue along it where it meets the barrel. Repeat on the other side.

Your daughter should be able see the bead through the ghost ring only if her head is down. If you don't let her shoot fast enough to heat the barrel much, it will hold. You can get it off later by soaking in acetone and it won't affect the finish.

Nick