Fixture Plates for machining an AR15 80% lower receiver

These fixture plates are designed to produce softjaws that allow for holding an 80% AR15 lower receiver to machine the trigger group pocket.

Also, depending upon how produced it can provide guide bushings to drill out the three holes in the trigger group.

Was created with AutoDesk Inventor 2014, if you want to modify the files, the original code is provided. For those of you with other 3D CAD software I am including IGES files of each model, which should be compatible with most software (including FREECAD).