Have you tried wiggling the slide stop, will it move, can you pull it out ? Tried pulling the trigger while moving the slide forward ? Can you maybe stick a pencil in the barrel and try to lift the end of the barrel feed ramp, while wiggling the slide stop or pushing the slide forward or rearward to line up the witness marks, then pulling out the stop ? If the stop won't move see if you can use a punch and carefully tap it out. That's all I've got, maybe Toney will chime in here and can help out.........or anyone else got any ideas ?