u/kopsis · 2025-01-31 15:31:34 UTC · score 1

The Professor Parabellum MAC11 is an open bolt design. This is incompatible with the DB9 Alloy, Mac-n-Cheese V2, and other 3D printed semi-automatic MAC11 designs. In open bolt designs there is no hammer and no movable firing pin, and hence no semi-automatic capability. In other words, it is a machine gun - poss…

u/rsmith_28 · 2023-11-09 00:01:40 UTC · score 25

Hello /r/Fosscad!

Some of you have been asking for updates on the Urutau and for a potential release date. I have been participating in the beta test for more than a year now, and I honestly believe that the Urutau has the potential to become the next state-of-the-art printed firearm design, akin to the …

u/altpersonalittty · 2024-03-29 02:05:16 UTC · score 22

Even though there is no ruling, I have decided to not continue pursuing a super safety trip bar for the db9 alloy and other mac builds. This decision was partly made for me as my TB order will never show up lol. Anyways, I had put a decent amount of work into this sheet metal trip bar that s…