I have made a little more progress on the receiver. The next thing I needed to do was to mill off the excess metal on the radius of the receiver sides and the trigger plate. The trigger plate is just as it came out of the EDM wire cutter. I am going to try and attach a video below. You should be able to click on the arrow and play. I will try one and if it works then do another post with others to show how the CNC does this job. If it doesn't work then I do have still pictures as backup. Here goes-------Bill