foolsgold80z
Member
As a machinist the first thing I notice in your photos that relates to your slide sticking issue is the upper edges of the slide groove on the frame appear to have not been deburred and appear to be sharp or to have a raised burr. The galling could have occurred from some of this burr material coming loose and being trapped between the slide and frame. I would clean up those edges and any sharp edges on the slide with a stone or small fine file. By "edges" I mean the sharp corners. Good luck with your new gun.