Okay. Keep in mind that i have an techt l7bolt in it. So I was taking my gun apart when I stripped where te banjo fitting goes into. he hole is stripped. It is the whole on the swivel donut. So then I took the c clip off of it to replace the swivel donut since it is stripped. I then unscrewed the screw on the back of the firing chamber and the other part of the screw. (on te inside) fell into the firing chamber. When I was trying to get the screw re-screwed, an o ring fell out of the firing chamber but the screw is still stuck in there . What should I do? The firing chamber has a rubber washer in the way so I can not get the screw out that way.