@Jmoore: excellent documentation! Great detail. I think my fabricating friend can work with these. Thank you!

@WarPig1976: One of the showcases of the 3D printer is in fact a firearm. I haven't seen it myself, but if I remember correctly it's an assault rifle. The only part they do not 'print' is the firing pin...
The plan to have the mle1892 part 'printed' is an experiment, with the thought in mind that it could always be replaced by a more conventionally fabricated version.