At this point with a 5,000 round endurance for a plastic AK receiver, I think it's fair to say the 'project' has reached maturity. Especially when this is all completed on entry level printers
5k rounds is impressive, I will concede the point if that's true. I would like to look at the design of this. Do you have a link to the CAD files, or whatever you have that explains how they deal with pressure issues.