I don't intend to give up my heavy metal 1911 style carry piece, but these things are V1.0. I expect V12.8 will be much, much better. These are early days.
Pick your alloy.
“I don’t intend to give up my heavy metal 1911 style carry piece”
I knew you were a man of good taste, refinement, and distinction.
I think these 3D plastic models would make a great one time use gun, for emergency purposes. Holds 9 rounds or so, non reloadable, disposable, and cheap to make. Would come in handy if you’re in a real bind. As far as barrel issues go, maybe using a section of barrel sleeve (for repairing old barrels) would work as an insert. Brownell’s has a range of stock for common calibers.
I believe there are hybrid plastic/ceramic type materials out there.
Once a durable material is developed to be used in 3d printing....watch out.