As I build the Magazines, I will post .dxf files with description for anyone.
Material- Brass 230 Schedule 40 pipe 4.5 OD X 4.02 ID
6 ea 2-56 holes X .300 deep 2 sides
2 ea .126 holes X .250 deep slip fit for .125 dowel 2 side
Between the Lathe and Mill operation, I recommend cleaning
the part and putting in your home oven. 350 degrees for 3 hours.
(Stress relieve / Anneal.)