Now that’s a zippy Depression-era 1911
I give you the rare 1939 Colt Industries factory Swartz conversion .45 auto with the extendo clipazine.
Yes, it is full auto. Yes, that is the intended buttstock ala C96. Yes, that is a 20-round single stack mag which gave the user about 1.5 seconds of sustained fire.
These guns would make a great addition to an author working on a Diesel Punk era novel.